Who Called Me from Area Code 603?
Quick answerA 603 call usually comes from Manchester or nearby communities, but caller ID can be spoofed, so a local-looking number isn’t proof. If there’s no voicemail, let it go: legitimate callers leave messages.
- No voicemail? Let it go. Real callers leave messages.
- Recognize the pattern? Check the number in the prefix lookup.
- Getting repeats? ActiveArmor® blocks and labels them automatically.
- Same prefix calling again? Compare it against this month’s most-reported 603 prefixes, right on this page.
- Curious who issued a number? Every 603 prefix belongs to a carrier — the registry names it.
Been targeted?Report the call at reportfraud.ftc.gov — reports feed the complaint data that powers spam blocking, including the board on this page. AT&T customers already have ActiveArmor® screening built in.
Most-reported 603 prefixes this month
PrefixReported patternReport volume
(603) 441-XXXXRobocall-heavy
(603) 256-XXXXRobocall-heavy
(603) 457-XXXXRobocall-heavy
(603) 461-XXXXRobocall-heavy
(603) 556-XXXXRobocall-heavy
175 unwanted-call reports naming 603 numbers in FTC Do Not Call complaint data, July 2–17, 2026. Consumer-reported and unverified.
Block spam calls in the 603, included with AT&T wireless
AT&T ActiveArmor® is the network-level security that screens the calls this page is about:
- Fraud calls blocked automatically on the network
- Suspected spam labeled before you answer
- Caller ID & custom call blocking in the free app
- Reverse number lookup (available with ActiveArmor Advanced security. Fee required.)
- Identity monitoring & identity theft insurance (available with ActiveArmor Advanced security. Fee required.)
Included with AT&T wireless plans. Requires compatible device/service and download of the AT&T ActiveArmor® app. Other terms & restrictions apply. May not detect all threats and may block wanted calls. Some features require Advanced mobile security ($7/mo.). See terms.
See how ActiveArmor worksIncluded with the free 30-day AT&T Wireless℠ trialTry AT&T Wireless℠ free for 30 daysDownload the AT&T app, activate a trial eSIM in minutes, and run our network side by side with your current service. No credit card, keep your number.
- 100GB of data plus 25GB hotspot
- Unlimited talk & text in the U.S., Canada and Mexico
- Texting from the U.S. to 200+ countries & territories
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Offer details
Service good for 30 days. Data: Limited to 100GB of data and 25GB of hotspot data. No additional data is available after limit is reached. Video is limited to SD quality. Talk & Text: Includes unlimited talk & text within the U.S. and unlimited text from the U.S. to over 230 countries. Limits: One trial per user. An unlocked, dual eSIM iPhone is required. You’ll receive a trial phone number that belongs to AT&T and is not available to be ported to another carrier or otherwise retained. Trial plan features and details may differ from or be unavailable in other AT&T plans. U.S. only. All terms subject to change at any time.
Is Area Code 603 a Scam?
No. 603 is a legitimate Manchester area code.
It’s one of the original 1947 codes and serves Manchester and surrounding communities. But legitimacy of the code says nothing about any single call. Scammers spoof local numbers constantly.
The code is realOriginal 1947 code for the Manchester area with 752 assigned carrier prefixes.
Spoofing happens“Neighbor spoofing” fakes local numbers. No voicemail? Let it go.
Screening includedActiveArmor® labels and blocks suspected spam. Included with AT&T wireless plans.
Been targeted? Report it to the FTC at reportfraud.ftc.gov. Reports feed the complaint data that powers spam blocking.
Scam texts from area code 603 numbers
The most common area code 603 text scam is the “wrong number” opener: a friendly message that pretends to know you, then moves the chat to WhatsApp and eventually to an investment pitch. Scripts currently circulating:
- “U at home?” · “Are you busy tomorrow?” · “How are you doing?”
- Delivery-problem and job-offer texts that link out to a login page
Don’t reply. A response marks your number as live. Forward scam texts to 7726 (SPAM), and AT&T ActiveArmor® filters known senders automatically.
How number spoofing works in area code 603
Caller ID is easy to forge. Spoofing fakes the number a call displays. The real owner of that 603 number isn’t involved and usually has no idea. That’s why blocking one number rarely stops the calls.
- A call from a number almost identical to yours (same 603 and prefix) is “mirror spoofing.” A missed call from your own number is never worth returning.
- Strangers calling you back saying you called them? Your 603 number is being spoofed. It typically passes within days, and you don’t need a new number. Report it at reportfraud.ftc.gov.
- The caller-ID checkmark: AT&T verifies network calls (STIR/SHAKEN). A verified mark means the displayed number wasn’t faked. No mark doesn’t always mean scam, but treat it with more caution.
Spoofed or not, the rule holds: unexpected caller, no voicemail? Let it go.
603 Area Code Prefix & Carrier Lookup
The three digits after the area code identify the carrier a number was issued to. All 752 assigned 603 prefixes below are real, from the public numbering registry. Type to filter.
This isn’t a reverse phone lookup: no legitimate free service can tell you who owns a specific number. What a 603 prefix does show: the carrier that issued it, whether it’s wireless, landline or VoIP, and the community it belongs to, which is often enough to judge whether a call was worth returning.
752 prefixes · updated monthly
| Prefix | Carrier | Line type |
|---|---|---|
| 603-200 | Comcast (Xfinity Voice) | VoIP |
| 603-202 | T-Mobile (Omnipoint) | Landline |
| 603-203 | AT&T Mobility | Wireless |
| 603-204 | United States Cellular | Wireless |
| 603-205 | T-Mobile (Omnipoint) | Landline |
| 603-206 | Windstream (Paetec) | Landline |
| 603-207 | Onvoy (Sinch) | VoIP |
| 603-208 | United States Cellular | Wireless |
| 603-209 | United States Cellular | Wireless |
| 603-210 | Comcast (Xfinity Voice) | VoIP |
| 603-212 | Consolidated Comm Of No. New England | Landline |
| 603-213 | Comcast (Xfinity Voice) | VoIP |
| 603-214 | Freedom Ring Communications | Landline |
| 603-215 | Freedom Ring Communications | Landline |
| 603-216 | Comcast (Xfinity Voice) | VoIP |
| 603-217 | Bell Atlantic Mobile | Wireless |
| 603-218 | Windstream (Paetec) | Landline |
| 603-219 | T-Mobile (Omnipoint) | Landline |
| 603-221 | Consolidated Comm Of No. New England | Landline |
| 603-222 | Consolidated Comm Of No. New England | Landline |
| 603-223 | Consolidated Comm Of No. New England | Landline |
| 603-224 | Consolidated Comm Of No. New England | Landline |
| 603-225 | Consolidated Comm Of No. New England | Landline |
| 603-226 | Consolidated Comm Of No. New England | Landline |
| 603-227 | Consolidated Comm Of No. New England | Landline |
| 603-228 | Consolidated Comm Of No. New England | Landline |
| 603-229 | Consolidated Comm Of No. New England | Landline |
| 603-230 | Consolidated Comm Of No. New England | Landline |
| 603-231 | T-Mobile (Omnipoint) | Landline |
| 603-232 | Comcast (Xfinity Voice) | VoIP |
| 603-233 | T-Mobile (Omnipoint) | Landline |
| 603-234 | T-Mobile (Omnipoint) | Landline |
| 603-235 | T-Mobile (Omnipoint) | Landline |
| 603-236 | Consolidated Comm Of No. New England | Landline |
| 603-237 | Consolidated Comm Of No. New England | Landline |
| 603-238 | Windstream (Paetec) | Landline |
| 603-239 | Consolidated Comm Of No. New England | Landline |
| 603-240 | Consolidated Comm Of No. New England | Landline |
| 603-241 | AT&T Mobility | Wireless |
| 603-242 | Consolidated Comm Of No. New England | Landline |
| 603-243 | Spectrum (Charter IP) | Landline |
| 603-244 | Comcast (Xfinity Voice) | VoIP |
| 603-245 | Consolidated Comm Of No. New England | Landline |
| 603-246 | Consolidated Comm Of No. New England | Landline |
| 603-247 | AT&T Mobility | Wireless |
| 603-248 | Consolidated Comm Of No. New England | Landline |
| 603-249 | Consolidated Comm Of No. New England | Landline |
| 603-250 | Freedom Ring Communications | Landline |
| 603-251 | Windstream (Paetec) | Landline |
| 603-252 | United States Cellular | Wireless |
| 603-253 | Consolidated Comm Of No. New England | Landline |
| 603-254 | United States Cellular | Wireless |
| 603-255 | Csc Wireless | Wireless |
| 603-256 | Consolidated Comm Of No. New England | Landline |
| 603-257 | Freedom Ring Communications | Landline |
| 603-258 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-259 | Lumen (Level 3) | VoIP |
| 603-260 | Comcast (Xfinity Voice) | VoIP |
| 603-261 | United States Cellular | Wireless |
| 603-262 | Consolidated Comm Of No. New England | Landline |
| 603-263 | Peerless Network | VoIP |
| 603-264 | T-Mobile (Omnipoint) | Landline |
| 603-265 | T-Mobile (Omnipoint) | Landline |
| 603-266 | Consolidated Comm Of No. New England | Landline |
| 603-267 | Consolidated Comm Of No. New England | Landline |
| 603-268 | Consolidated Comm Of No. New England | Landline |
| 603-269 | Union Tel. | Landline |
| 603-270 | Verizon Business (MCImetro) | Landline |
| 603-271 | Consolidated Comm Of No. New England | Landline |
| 603-272 | Consolidated Comm Of No. New England | Landline |
| 603-273 | Verizon Business (MCImetro) | Landline |
| 603-274 | Verizon Business (MCImetro) | Landline |
| 603-275 | T-Mobile (Omnipoint) | Landline |
| 603-276 | Bell Atlantic Mobile | Wireless |
| 603-277 | Comcast (Xfinity Voice) | VoIP |
| 603-278 | Bretton Woods Tel. | Landline |
| 603-279 | Consolidated Comm Of No. New England | Landline |
| 603-280 | Lumen (Level 3) | VoIP |
| 603-281 | Consolidated Comm Of No. New England | Landline |
| 603-282 | Verizon Business (MCImetro) | Landline |
| 603-283 | Windstream (Paetec) | Landline |
| 603-284 | Consolidated Comm Of No. New England | Landline |
| 603-285 | Verizon Business (MCImetro) | Landline |
| 603-286 | Consolidated Comm Of No. New England | Landline |
| 603-287 | Lumen (Level 3) | VoIP |
| 603-288 | Vonage | VoIP |
| 603-289 | AT&T Mobility | Wireless |
| 603-290 | United States Cellular | Wireless |
| 603-291 | Comcast (Xfinity Voice) | VoIP |
| 603-292 | Comcast (Xfinity Voice) | VoIP |
| 603-293 | Consolidated Comm Of No. New England | Landline |
| 603-294 | Lumen (Level 3) | VoIP |
| 603-295 | Windstream (Paetec) | Landline |
| 603-296 | Windstream (Paetec) | Landline |
| 603-297 | Freedom Ring Communications | Landline |
| 603-298 | Consolidated Comm Of No. New England | Landline |
| 603-299 | AT&T Mobility | Wireless |
| 603-300 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-301 | Lumen (Level 3) | VoIP |
| 603-302 | Consolidated Comm Of No. New England | Landline |
| 603-303 | Bell Atlantic Mobile | Wireless |
| 603-304 | United States Cellular | Wireless |
| 603-305 | Bell Atlantic Mobile | Wireless |
| 603-306 | Freedom Ring Communications | Landline |
| 603-307 | Bell Atlantic Mobile | Wireless |
| 603-308 | Consolidated Comm Of No. New England | Landline |
| 603-309 | Bell Atlantic Mobile | Wireless |
| 603-310 | Windstream (Paetec) | Landline |
| 603-312 | Bell Atlantic Mobile | Wireless |
| 603-313 | United States Cellular | Wireless |
| 603-314 | Windstream (Paetec) | Landline |
| 603-315 | Bell Atlantic Mobile | Wireless |
| 603-316 | Bell Atlantic Mobile | Wireless |
| 603-317 | Verizon Business (MCImetro) | Landline |
| 603-318 | Bell Atlantic Mobile | Wireless |
| 603-319 | Windstream (Paetec) | Landline |
| 603-320 | AT&T Mobility | Wireless |
| 603-321 | Bell Atlantic Mobile | Wireless |
| 603-322 | AT&T Mobility | Wireless |
| 603-323 | Consolidated Comm Of No. New England | Landline |
| 603-324 | Verizon Business (MCImetro) | Landline |
| 603-325 | Verizon Business (MCImetro) | Landline |
| 603-326 | Lumen (Level 3) | VoIP |
| 603-327 | Windstream (Paetec) | Landline |
| 603-328 | Windstream (Paetec) | Landline |
| 603-329 | Consolidated Comm Of No. New England | Landline |
| 603-330 | Consolidated Comm Of No. New England | Landline |
| 603-331 | Lumen (Level 3) | VoIP |
| 603-332 | Consolidated Comm Of No. New England | Landline |
| 603-333 | Peerless Network | VoIP |
| 603-334 | Consolidated Comm Of No. New England | Landline |
| 603-335 | Consolidated Comm Of No. New England | Landline |
| 603-336 | Consolidated Comm Of No. New England | Landline |
| 603-337 | Consolidated Comm Of No. New England | Landline |
| 603-338 | Verizon Business (MCImetro) | Landline |
| 603-339 | AT&T Mobility | Wireless |
| 603-340 | Bell Atlantic Mobile | Wireless |
| 603-341 | United States Cellular | Wireless |
| 603-342 | Consolidated Comm Of No. New England | Landline |
| 603-343 | Comcast (Xfinity Voice) | VoIP |
| 603-344 | United States Cellular | Wireless |
| 603-345 | United States Cellular | Wireless |
| 603-346 | Hd Carrier | Landline |
| 603-347 | Comcast (Xfinity Voice) | VoIP |
| 603-348 | United States Cellular | Wireless |
| 603-349 | United States Cellular | Wireless |
| 603-350 | Verizon Business (MCImetro) | Landline |
| 603-351 | Verizon Business (MCImetro) | Landline |
| 603-352 | Consolidated Comm Of No. New England | Landline |
| 603-353 | Consolidated Comm Of No. New England | Landline |
| 603-354 | Consolidated Comm Of No. New England | Landline |
| 603-355 | Consolidated Comm Of No. New England | Landline |
| 603-356 | Consolidated Comm Of No. New England | Landline |
| 603-357 | Consolidated Comm Of No. New England | Landline |
| 603-358 | Consolidated Comm Of No. New England | Landline |
| 603-359 | Bell Atlantic Mobile | Wireless |
| 603-360 | Topsham Communications | Landline |
| 603-361 | Bell Atlantic Mobile | Wireless |
| 603-362 | Consolidated Comm Of No. New England | Landline |
| 603-363 | Consolidated Comm Of No. New England | Landline |
| 603-364 | Union Tel. | Landline |
| 603-365 | T-Mobile (Omnipoint) | Landline |
| 603-366 | Consolidated Comm Of No. New England | Landline |
| 603-367 | Consolidated Comm Of No. New England | Landline |
| 603-368 | AT&T (Teleport Communications) | Landline |
| 603-369 | Lumen (Level 3) | VoIP |
| 603-370 | Bell Atlantic Mobile | Wireless |
| 603-371 | Windstream (Paetec) | Landline |
| 603-372 | Freedom Ring Communications | Landline |
| 603-373 | Windstream (Paetec) | Landline |
| 603-374 | Consolidated Comm Of No. New England | Landline |
| 603-375 | Spectrum (TWC IP) | Landline |
| 603-376 | American Messaging (paging) | Landline |
| 603-377 | T-Mobile (Omnipoint) | Landline |
| 603-378 | Consolidated Comm Of No. New England | Landline |
| 603-379 | Lumen (Level 3) | VoIP |
| 603-380 | AT&T Mobility | Wireless |
| 603-381 | United States Cellular | Wireless |
| 603-382 | Consolidated Comm Of No. New England | Landline |
| 603-383 | Consolidated Comm Of No. New England | Landline |
| 603-384 | Comcast (Xfinity Voice) | VoIP |
| 603-385 | Consolidated Comm Of No. New England | Landline |
| 603-386 | Windstream (Paetec) | Landline |
| 603-387 | Bell Atlantic Mobile | Wireless |
| 603-388 | Freedom Ring Communications | Landline |
| 603-389 | Windstream (Paetec) | Landline |
| 603-390 | Verizon Business (MCImetro) | Landline |
| 603-391 | AT&T (Teleport Communications) | Landline |
| 603-392 | Comcast (Xfinity Voice) | VoIP |
| 603-393 | United States Cellular | Wireless |
| 603-394 | Consolidated Comm Of No. New England | Landline |
| 603-395 | Verizon Business (MCImetro) | Landline |
| 603-396 | T-Mobile (Omnipoint) | Landline |
| 603-397 | Comcast (Xfinity Voice) | VoIP |
| 603-398 | United States Cellular | Wireless |
| 603-399 | Consolidated Comm Of No. New England | Landline |
| 603-400 | Spectrum (Charter IP) | Landline |
| 603-401 | Bell Atlantic Mobile | Wireless |
| 603-402 | Bell Atlantic Mobile | Wireless |
| 603-403 | Comcast (Xfinity Voice) | VoIP |
| 603-404 | Bell Atlantic Mobile | Wireless |
| 603-405 | AT&T (Teleport Communications) | Landline |
| 603-406 | T-Mobile (Omnipoint) | Landline |
| 603-407 | Windstream (Paetec) | Landline |
| 603-408 | AT&T Mobility | Wireless |
| 603-409 | AT&T Mobility | Wireless |
| 603-410 | Windstream (Paetec) | Landline |
| 603-412 | United States Cellular | Wireless |
| 603-413 | Windstream (Paetec) | Landline |
| 603-414 | Tds Metrocom | Landline |
| 603-415 | Freedom Ring Communications | Landline |
| 603-416 | T-Mobile (Omnipoint) | Landline |
| 603-417 | T-Mobile (Omnipoint) | Landline |
| 603-418 | Windstream (Paetec) | Landline |
| 603-419 | United States Cellular | Wireless |
| 603-420 | Verizon Business (MCImetro) | Landline |
| 603-421 | Consolidated Comm Of No. New England | Landline |
| 603-422 | Consolidated Comm Of No. New England | Landline |
| 603-423 | Consolidated Comm Of No. New England | Landline |
| 603-424 | Consolidated Comm Of No. New England | Landline |
| 603-425 | Consolidated Comm Of No. New England | Landline |
| 603-426 | Consolidated Comm Of No. New England | Landline |
| 603-427 | Consolidated Comm Of No. New England | Landline |
| 603-428 | Merrimack Co. Telephone Co., dba Contoocook Valley | Landline |
| 603-429 | Consolidated Comm Of No. New England | Landline |
| 603-430 | Consolidated Comm Of No. New England | Landline |
| 603-431 | Consolidated Comm Of No. New England | Landline |
| 603-432 | Consolidated Comm Of No. New England | Landline |
| 603-433 | Consolidated Comm Of No. New England | Landline |
| 603-434 | Consolidated Comm Of No. New England | Landline |
| 603-435 | Consolidated Comm Of No. New England | Landline |
| 603-436 | Consolidated Comm Of No. New England | Landline |
| 603-437 | Consolidated Comm Of No. New England | Landline |
| 603-438 | T-Mobile (Omnipoint) | Landline |
| 603-439 | Windstream (Paetec) | Landline |
| 603-440 | Consolidated Comm Of No. New England | Landline |
| 603-441 | Comcast (Xfinity Voice) | VoIP |
| 603-442 | Consolidated Comm Of No. New England | Landline |
| 603-443 | Consolidated Comm Of No. New England | Landline |
| 603-444 | Consolidated Comm Of No. New England | Landline |
| 603-445 | Consolidated Comm Of No. New England | Landline |
| 603-446 | Consolidated Comm Of No. New England | Landline |
| 603-447 | Consolidated Comm Of No. New England | Landline |
| 603-448 | Consolidated Comm Of No. New England | Landline |
| 603-449 | Consolidated Comm Of No. New England | Landline |
| 603-450 | T-Mobile (Omnipoint) | Landline |
| 603-451 | AT&T Mobility | Wireless |
| 603-452 | Freedom Ring Communications | Landline |
| 603-453 | AT&T Local | Landline |
| 603-454 | United States Cellular | Wireless |
| 603-455 | United States Cellular | Wireless |
| 603-456 | Merrimack County Tel. | Landline |
| 603-457 | Idt America | Landline |
| 603-458 | Comcast (Xfinity Voice) | VoIP |
| 603-459 | Windstream (Paetec) | Landline |
| 603-460 | Verizon Business (MCImetro) | Landline |
| 603-461 | United States Cellular | Wireless |
| 603-462 | Freedom Ring Communications | Landline |
| 603-463 | Consolidated Comm Of No. New England | Landline |
| 603-464 | Merrimack Co. Telephone Co., dba Contoocook Valley | Landline |
| 603-465 | Hollis Telephone Company | Landline |
| 603-466 | Consolidated Comm Of No. New England | Landline |
| 603-467 | Wavenation | Landline |
| 603-468 | Freedom Ring Communications | Landline |
| 603-469 | Kearsarge Tel. | Landline |
| 603-470 | United States Cellular | Wireless |
| 603-471 | Consolidated Comm Of No. New England | Landline |
| 603-472 | Consolidated Comm Of No. New England | Landline |
| 603-473 | Consolidated Comm Of No. New England | Landline |
| 603-474 | Consolidated Comm Of No. New England | Landline |
| 603-475 | Bell Atlantic Mobile | Wireless |
| 603-476 | Consolidated Comm Of No. New England | Landline |
| 603-477 | United States Cellular | Wireless |
| 603-478 | Granite State Tel. | Landline |
| 603-479 | AT&T Mobility | Wireless |
| 603-480 | Bandwidth.com | VoIP |
| 603-481 | Bell Atlantic Mobile | Wireless |
| 603-482 | Consolidated Comm Of No. New England | Landline |
| 603-483 | Consolidated Comm Of No. New England | Landline |
| 603-484 | Bell Atlantic Mobile | Wireless |
| 603-485 | Consolidated Comm Of No. New England | Landline |
| 603-486 | United States Cellular | Wireless |
| 603-487 | Consolidated Comm Of No. New England | Landline |
| 603-488 | Comcast (Xfinity Voice) | VoIP |
| 603-489 | Comcast (Xfinity Voice) | VoIP |
| 603-490 | Bell Atlantic Mobile | Wireless |
| 603-491 | Bell Atlantic Mobile | Wireless |
| 603-492 | Consolidated Comm Of No. New England | Landline |
| 603-493 | Bell Atlantic Mobile | Wireless |
| 603-494 | Bell Atlantic Mobile | Wireless |
| 603-495 | Granite State Tel. | Landline |
| 603-496 | Bell Atlantic Mobile | Wireless |
| 603-497 | Consolidated Comm Of No. New England | Landline |
| 603-498 | Bell Atlantic Mobile | Wireless |
| 603-499 | Lumen (Level 3) | VoIP |
| 603-500 | FracTEL | Landline |
| 603-501 | Windstream (Paetec) | Landline |
| 603-502 | AT&T Mobility | Wireless |
| 603-503 | Verizon Business (MCImetro) | Landline |
| 603-504 | United States Cellular | Wireless |
| 603-505 | Bell Atlantic Mobile | Wireless |
| 603-506 | AT&T Mobility | Wireless |
| 603-507 | AT&T Mobility | Wireless |
| 603-508 | Bell Atlantic Mobile | Wireless |
| 603-509 | Windstream (Paetec) | Landline |
| 603-510 | Comcast (Xfinity Voice) | VoIP |
| 603-512 | T-Mobile (Omnipoint) | Landline |
| 603-513 | Bell Atlantic Mobile | Wireless |
| 603-514 | Bell Atlantic Mobile | Wireless |
| 603-515 | Consolidated Comm Of No. New England | Landline |
| 603-516 | Freedom Ring Communications | Landline |
| 603-517 | American Messaging (paging) | Landline |
| 603-518 | AT&T Local | Landline |
| 603-519 | Bell Atlantic Mobile | Wireless |
| 603-520 | Bell Atlantic Mobile | Wireless |
| 603-521 | AT&T Local | Landline |
| 603-522 | Consolidated Comm Of No. New England | Landline |
| 603-523 | Consolidated Comm Of No. New England | Landline |
| 603-524 | Consolidated Comm Of No. New England | Landline |
| 603-525 | Consolidated Comm Of No. New England | Landline |
| 603-526 | Kearsarge Tel. | Landline |
| 603-527 | Consolidated Comm Of No. New England | Landline |
| 603-528 | Consolidated Comm Of No. New England | Landline |
| 603-529 | Granite State Tel. | Landline |
| 603-530 | Bell Atlantic Mobile | Wireless |
| 603-531 | AT&T Mobility | Wireless |
| 603-532 | Consolidated Comm Of No. New England | Landline |
| 603-533 | United States Cellular | Wireless |
| 603-534 | Bell Atlantic Mobile | Wireless |
| 603-535 | Windstream (Paetec) | Landline |
| 603-536 | Consolidated Comm Of No. New England | Landline |
| 603-537 | Consolidated Comm Of No. New England | Landline |
| 603-538 | Consolidated Comm Of No. New England | Landline |
| 603-539 | Consolidated Comm Of No. New England | Landline |
| 603-540 | Bell Atlantic Mobile | Wireless |
| 603-541 | Consolidated Comm Of No. New England | Landline |
| 603-542 | Consolidated Comm Of No. New England | Landline |
| 603-543 | Consolidated Comm Of No. New England | Landline |
| 603-544 | Merrimack Co. Telephone Co., dba Contoocook Valley | Landline |
| 603-545 | Windstream (Paetec) | Landline |
| 603-546 | Windstream (Paetec) | Landline |
| 603-547 | Consolidated Comm Of No. New England | Landline |
| 603-548 | Bell Atlantic Mobile | Wireless |
| 603-549 | Consolidated Comm Of No. New England | Landline |
| 603-550 | Telnyx | Landline |
| 603-551 | Consolidated Comm Of No. New England | Landline |
| 603-552 | Verizon Business (MCImetro) | Landline |
| 603-553 | AT&T Mobility | Wireless |
| 603-554 | United States Cellular | Wireless |
| 603-556 | Lumen (Level 3) | VoIP |
| 603-557 | T-Mobile (Omnipoint) | Landline |
| 603-558 | Bell Atlantic Mobile | Wireless |
| 603-559 | Consolidated Comm Of No. New England | Landline |
| 603-560 | AT&T Mobility | Wireless |
| 603-561 | Consolidated Comm Of No. New England | Landline |
| 603-562 | United States Cellular | Wireless |
| 603-563 | Consolidated Comm Of No. New England | Landline |
| 603-564 | Consolidated Comm Of No. New England | Landline |
| 603-565 | Lumen (Level 3) | VoIP |
| 603-566 | Bell Atlantic Mobile | Wireless |
| 603-567 | Lumen (Level 3) | VoIP |
| 603-568 | Bell Atlantic Mobile | Wireless |
| 603-569 | Consolidated Comm Of No. New England | Landline |
| 603-570 | AT&T (Teleport Communications) | Landline |
| 603-571 | AT&T Mobility | Wireless |
| 603-573 | Verizon Business (MCImetro) | Landline |
| 603-574 | Lumen (Level 3) | VoIP |
| 603-575 | Verizon Business (MCImetro) | Landline |
| 603-576 | Lumen (Level 3) | VoIP |
| 603-577 | Consolidated Comm Of No. New England | Landline |
| 603-578 | Consolidated Comm Of No. New England | Landline |
| 603-579 | Consolidated Comm Of No. New England | Landline |
| 603-580 | Comcast (Xfinity Voice) | VoIP |
| 603-581 | Windstream (Paetec) | Landline |
| 603-582 | United States Cellular | Wireless |
| 603-583 | Lumen (Level 3) | VoIP |
| 603-584 | T-Mobile (Omnipoint) | Landline |
| 603-585 | Consolidated Comm Of No. New England | Landline |
| 603-586 | Consolidated Comm Of No. New England | Landline |
| 603-587 | Verizon Business (MCImetro) | Landline |
| 603-588 | Merrimack Co. Telephone Co., dba Contoocook Valley | Landline |
| 603-589 | Windstream (Paetec) | Landline |
| 603-590 | Freedom Ring Communications | Landline |
| 603-591 | T-Mobile (Omnipoint) | Landline |
| 603-592 | Verizon Business (MCImetro) | Landline |
| 603-593 | Windstream (Paetec) | Landline |
| 603-594 | Consolidated Comm Of No. New England | Landline |
| 603-595 | Consolidated Comm Of No. New England | Landline |
| 603-596 | Consolidated Comm Of No. New England | Landline |
| 603-597 | Verizon Business (MCImetro) | Landline |
| 603-598 | Consolidated Comm Of No. New England | Landline |
| 603-599 | Consolidated Comm Of No. New England | Landline |
| 603-600 | Commio | Landline |
| 603-601 | Windstream (Paetec) | Landline |
| 603-602 | AT&T (Teleport Communications) | Landline |
| 603-604 | Consolidated Comm Of No. New England | Landline |
| 603-605 | Peerless Network | VoIP |
| 603-606 | Onvoy Spectrum (Sinch) | VoIP |
| 603-607 | Nuso | Landline |
| 603-608 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-609 | AT&T Mobility | Wireless |
| 603-610 | Windstream (Paetec) | Landline |
| 603-612 | Windstream (Paetec) | Landline |
| 603-613 | Verizon Business (MCImetro) | Landline |
| 603-614 | Lumen (Level 3) | VoIP |
| 603-615 | Consolidated Comm Of No. New England | Landline |
| 603-616 | United States Cellular | Wireless |
| 603-617 | Windstream (Paetec) | Landline |
| 603-618 | Lumen (Level 3) | VoIP |
| 603-619 | Comcast (Xfinity Voice) | VoIP |
| 603-620 | United States Cellular | Wireless |
| 603-621 | Consolidated Comm Of No. New England | Landline |
| 603-622 | Consolidated Comm Of No. New England | Landline |
| 603-623 | Consolidated Comm Of No. New England | Landline |
| 603-624 | Consolidated Comm Of No. New England | Landline |
| 603-625 | Consolidated Comm Of No. New England | Landline |
| 603-626 | Consolidated Comm Of No. New England | Landline |
| 603-627 | Consolidated Comm Of No. New England | Landline |
| 603-628 | Consolidated Comm Of No. New England | Landline |
| 603-629 | Consolidated Comm Of No. New England | Landline |
| 603-630 | Bell Atlantic Mobile | Wireless |
| 603-631 | United States Cellular | Wireless |
| 603-632 | Consolidated Comm Of No. New England | Landline |
| 603-633 | Bell Atlantic Mobile | Wireless |
| 603-634 | Consolidated Comm Of No. New England | Landline |
| 603-635 | Consolidated Comm Of No. New England | Landline |
| 603-636 | Consolidated Comm Of No. New England | Landline |
| 603-637 | Verizon Business (MCImetro) | Landline |
| 603-638 | Consolidated Comm Of No. New England | Landline |
| 603-639 | Consolidated Comm Of No. New England | Landline |
| 603-640 | Consolidated Comm Of No. New England | Landline |
| 603-641 | Consolidated Comm Of No. New England | Landline |
| 603-642 | Consolidated Comm Of No. New England | Landline |
| 603-643 | Consolidated Comm Of No. New England | Landline |
| 603-644 | Consolidated Comm Of No. New England | Landline |
| 603-645 | Consolidated Comm Of No. New England | Landline |
| 603-646 | Consolidated Comm Of No. New England | Landline |
| 603-647 | Consolidated Comm Of No. New England | Landline |
| 603-648 | Kearsarge Tel. | Landline |
| 603-649 | Comcast (Xfinity Voice) | VoIP |
| 603-650 | Consolidated Comm Of No. New England | Landline |
| 603-651 | United States Cellular | Wireless |
| 603-652 | Consolidated Comm Of No. New England | Landline |
| 603-653 | Consolidated Comm Of No. New England | Landline |
| 603-654 | Wilton Tel. | Landline |
| 603-655 | Consolidated Comm Of No. New England | Landline |
| 603-656 | Fidium Enterprise Services | Landline |
| 603-657 | Windstream (Paetec) | Landline |
| 603-658 | Freedom Ring Communications | Landline |
| 603-659 | Consolidated Comm Of No. New England | Landline |
| 603-660 | Bell Atlantic Mobile | Wireless |
| 603-661 | T-Mobile (Omnipoint) | Landline |
| 603-662 | United States Cellular | Wireless |
| 603-663 | Consolidated Comm Of No. New England | Landline |
| 603-664 | Consolidated Comm Of No. New England | Landline |
| 603-665 | Consolidated Comm Of No. New England | Landline |
| 603-666 | Consolidated Comm Of No. New England | Landline |
| 603-667 | Verizon Business (MCImetro) | Landline |
| 603-668 | Consolidated Comm Of No. New England | Landline |
| 603-669 | Consolidated Comm Of No. New England | Landline |
| 603-670 | Windstream (Paetec) | Landline |
| 603-671 | Verizon Business (MCImetro) | Landline |
| 603-672 | Consolidated Comm Of No. New England | Landline |
| 603-673 | Consolidated Comm Of No. New England | Landline |
| 603-674 | T-Mobile (Omnipoint) | Landline |
| 603-675 | Consolidated Comm Of No. New England | Landline |
| 603-676 | Freedom Ring Communications | Landline |
| 603-677 | Verizon Business (MCImetro) | Landline |
| 603-678 | Lumen (Level 3) | VoIP |
| 603-679 | Consolidated Comm Of No. New England | Landline |
| 603-680 | Fidium Enterprise Services | Landline |
| 603-681 | Windstream (Paetec) | Landline |
| 603-682 | T-Mobile (Omnipoint) | Landline |
| 603-683 | Consolidated Comm Of No. New England | Landline |
| 603-684 | Lumen (Level 3) | VoIP |
| 603-685 | Windstream (Paetec) | Landline |
| 603-686 | Bell Atlantic Mobile | Wireless |
| 603-687 | Freedom Ring Communications | Landline |
| 603-688 | Peerless Network | VoIP |
| 603-689 | Windstream (Paetec) | Landline |
| 603-690 | Verizon Business (MCImetro) | Landline |
| 603-691 | Commio | Landline |
| 603-692 | Consolidated Comm Of No. New England | Landline |
| 603-693 | Windstream (Paetec) | Landline |
| 603-694 | Consolidated Communications Of Maine Company | Landline |
| 603-695 | Consolidated Comm Of No. New England | Landline |
| 603-696 | Onvoy (Sinch) | VoIP |
| 603-697 | Comcast (Xfinity Voice) | VoIP |
| 603-698 | Nuso | Landline |
| 603-699 | Nuso | Landline |
| 603-701 | Idt America | Landline |
| 603-702 | Bell Atlantic Mobile | Wireless |
| 603-703 | Otel Telekom | Landline |
| 603-704 | AT&T (Teleport Communications) | Landline |
| 603-705 | Comcast (Xfinity Voice) | VoIP |
| 603-706 | Windstream (Paetec) | Landline |
| 603-707 | Bell Atlantic Mobile | Wireless |
| 603-708 | Comcast (Xfinity Voice) | VoIP |
| 603-709 | Lumen (Level 3) | VoIP |
| 603-710 | AT&T Mobility | Wireless |
| 603-712 | Verizon Business (MCImetro) | Landline |
| 603-713 | Onvoy (Sinch) | VoIP |
| 603-714 | Bell Atlantic Mobile | Wireless |
| 603-715 | Comcast (Xfinity Voice) | VoIP |
| 603-716 | Bell Atlantic Mobile | Wireless |
| 603-717 | Windstream (Paetec) | Landline |
| 603-718 | Bell Atlantic Mobile | Wireless |
| 603-719 | Freedom Ring Communications | Landline |
| 603-720 | Spectrum (TWC IP) | Landline |
| 603-721 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-722 | Bandwidth.com | VoIP |
| 603-723 | United States Cellular | Wireless |
| 603-724 | Windstream (Paetec) | Landline |
| 603-725 | Lumen (Level 3) | VoIP |
| 603-726 | Consolidated Comm Of No. New England | Landline |
| 603-727 | Windstream (Paetec) | Landline |
| 603-728 | Lumen (Level 3) | VoIP |
| 603-729 | Verizon Business (MCImetro) | Landline |
| 603-730 | Verizon Business (MCImetro) | Landline |
| 603-731 | Bell Atlantic Mobile | Wireless |
| 603-732 | Verizon Business (MCImetro) | Landline |
| 603-733 | Lumen (Level 3) | VoIP |
| 603-734 | Verizon Business (MCImetro) | Landline |
| 603-735 | Kearsarge Tel. | Landline |
| 603-736 | Consolidated Comm Of No. New England | Landline |
| 603-737 | Freedom Ring Communications | Landline |
| 603-738 | AT&T Mobility | Wireless |
| 603-739 | Verizon Business (MCImetro) | Landline |
| 603-740 | Consolidated Comm Of No. New England | Landline |
| 603-741 | Lumen (Level 3) | VoIP |
| 603-742 | Consolidated Comm Of No. New England | Landline |
| 603-743 | Consolidated Comm Of No. New England | Landline |
| 603-744 | Consolidated Comm Of No. New England | Landline |
| 603-745 | Consolidated Comm Of No. New England | Landline |
| 603-746 | Merrimack County Tel. | Landline |
| 603-747 | Consolidated Comm Of No. New England | Landline |
| 603-748 | Bell Atlantic Mobile | Wireless |
| 603-749 | Consolidated Comm Of No. New England | Landline |
| 603-750 | Fidium Enterprise Services | Landline |
| 603-751 | Verizon Business (MCImetro) | Landline |
| 603-752 | Consolidated Comm Of No. New England | Landline |
| 603-753 | Consolidated Comm Of No. New England | Landline |
| 603-754 | Freedom Ring Communications | Landline |
| 603-755 | Consolidated Comm Of No. New England | Landline |
| 603-756 | Consolidated Comm Of No. New England | Landline |
| 603-757 | Windstream (Paetec) | Landline |
| 603-758 | Windstream (Paetec) | Landline |
| 603-759 | Bell Atlantic Mobile | Wireless |
| 603-760 | AT&T (Teleport Communications) | Landline |
| 603-761 | Freedom Ring Communications | Landline |
| 603-762 | Bell Atlantic Mobile | Wireless |
| 603-763 | Consolidated Comm Of No. New England | Landline |
| 603-764 | Consolidated Comm Of No. New England | Landline |
| 603-765 | T-Mobile (Omnipoint) | Landline |
| 603-766 | Freedom Ring Communications | Landline |
| 603-767 | AT&T Mobility | Wireless |
| 603-768 | Consolidated Comm Of No. New England | Landline |
| 603-769 | Lumen (Level 3) | VoIP |
| 603-770 | Bell Atlantic Mobile | Wireless |
| 603-771 | Consolidated Comm Of No. New England | Landline |
| 603-772 | Consolidated Comm Of No. New England | Landline |
| 603-773 | Consolidated Comm Of No. New England | Landline |
| 603-774 | Dunbarton Tel. | Landline |
| 603-775 | Consolidated Comm Of No. New England | Landline |
| 603-776 | Union Tel. | Landline |
| 603-777 | Consolidated Comm Of No. New England | Landline |
| 603-778 | Consolidated Comm Of No. New England | Landline |
| 603-779 | Verizon Business (MCImetro) | Landline |
| 603-780 | Lumen (Level 3) | VoIP |
| 603-781 | AT&T Mobility | Wireless |
| 603-782 | Lumen (Level 3) | VoIP |
| 603-783 | Consolidated Comm Of No. New England | Landline |
| 603-784 | Verizon Business (MCImetro) | Landline |
| 603-785 | AT&T Mobility | Wireless |
| 603-786 | Consolidated Comm Of No. New England | Landline |
| 603-787 | Consolidated Comm Of No. New England | Landline |
| 603-788 | Consolidated Comm Of No. New England | Landline |
| 603-789 | Freedom Ring Communications | Landline |
| 603-790 | Bell Atlantic Mobile | Wireless |
| 603-791 | Consolidated Comm Of No. New England | Landline |
| 603-792 | Freedom Ring Communications | Landline |
| 603-793 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-794 | AT&T Mobility | Wireless |
| 603-795 | Consolidated Comm Of No. New England | Landline |
| 603-796 | Kearsarge Tel. | Landline |
| 603-797 | Verizon Business (MCImetro) | Landline |
| 603-798 | Kearsarge Tel. | Landline |
| 603-799 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-800 | FracTEL | Landline |
| 603-801 | Bell Atlantic Mobile | Wireless |
| 603-802 | Onvoy (Sinch) | VoIP |
| 603-803 | Lumen (CenturyLink) | Landline |
| 603-804 | Boost Mobile | Landline |
| 603-805 | Verizon Business (MCImetro) | Landline |
| 603-808 | Comcast (Xfinity Voice) | VoIP |
| 603-809 | Bell Atlantic Mobile | Wireless |
| 603-810 | Telnyx | Landline |
| 603-812 | Bell Atlantic Mobile | Wireless |
| 603-813 | Idt America | Landline |
| 603-814 | Comcast (Xfinity Voice) | VoIP |
| 603-815 | AT&T (Teleport Communications) | Landline |
| 603-816 | Freedom Ring Communications | Landline |
| 603-817 | T-Mobile (Omnipoint) | Landline |
| 603-818 | T-Mobile (Omnipoint) | Landline |
| 603-819 | Lumen (Level 3) | VoIP |
| 603-820 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-821 | Windstream (Paetec) | Landline |
| 603-822 | Windstream (Paetec) | Landline |
| 603-823 | Consolidated Comm Of No. New England | Landline |
| 603-824 | Verizon Business (MCImetro) | Landline |
| 603-825 | Ton80 Communications | Landline |
| 603-826 | Consolidated Comm Of No. New England | Landline |
| 603-827 | Consolidated Comm Of No. New England | Landline |
| 603-828 | Bell Atlantic Mobile | Wireless |
| 603-829 | Verizon Business (MCImetro) | Landline |
| 603-831 | Bell Atlantic Mobile | Wireless |
| 603-832 | Windstream (Paetec) | Landline |
| 603-833 | Bell Atlantic Mobile | Wireless |
| 603-834 | Windstream (Paetec) | Landline |
| 603-835 | Consolidated Comm Of No. New England | Landline |
| 603-836 | Comcast (Xfinity Voice) | VoIP |
| 603-837 | Consolidated Comm Of No. New England | Landline |
| 603-838 | Consolidated Comm Of No. New England | Landline |
| 603-839 | Spectrum (TWC IP) | Landline |
| 603-840 | Comcast (Xfinity Voice) | VoIP |
| 603-841 | Comcast (Xfinity Voice) | VoIP |
| 603-842 | Windstream (Paetec) | Landline |
| 603-843 | Freedom Ring Communications | Landline |
| 603-845 | Windstream (Paetec) | Landline |
| 603-846 | Consolidated Comm Of No. New England | Landline |
| 603-847 | Consolidated Comm Of No. New England | Landline |
| 603-848 | United States Cellular | Wireless |
| 603-850 | AT&T Mobility | Wireless |
| 603-851 | Bell Atlantic Mobile | Wireless |
| 603-852 | T-Mobile (Omnipoint) | Landline |
| 603-853 | Freedom Ring Communications | Landline |
| 603-854 | AT&T Mobility | Wireless |
| 603-855 | Idt America | Landline |
| 603-856 | Windstream (Paetec) | Landline |
| 603-857 | Leap Telecom | Landline |
| 603-858 | T-Mobile (Omnipoint) | Landline |
| 603-859 | Union Tel. | Landline |
| 603-860 | Bell Atlantic Mobile | Wireless |
| 603-861 | Verizon Business (MCImetro) | Landline |
| 603-862 | Windstream (Paetec) | Landline |
| 603-863 | Consolidated Comm Of No. New England | Landline |
| 603-864 | Consolidated Comm Of No. New England | Landline |
| 603-865 | Consolidated Comm Of No. New England | Landline |
| 603-866 | T-Mobile (Omnipoint) | Landline |
| 603-867 | AT&T Mobility | Wireless |
| 603-868 | Consolidated Comm Of No. New England | Landline |
| 603-869 | Consolidated Comm Of No. New England | Landline |
| 603-870 | Consolidated Comm Of No. New England | Landline |
| 603-871 | Lumen (Level 3) | VoIP |
| 603-872 | Idt America | Landline |
| 603-873 | Lumen (Level 3) | VoIP |
| 603-874 | Lumen (Level 3) | VoIP |
| 603-875 | Union Tel. | Landline |
| 603-876 | Consolidated Comm Of No. New England | Landline |
| 603-877 | Comcast (Xfinity Voice) | VoIP |
| 603-878 | Consolidated Comm Of No. New England | Landline |
| 603-879 | Consolidated Comm Of No. New England | Landline |
| 603-880 | Telnyx | Landline |
| 603-881 | Consolidated Comm Of No. New England | Landline |
| 603-882 | Consolidated Comm Of No. New England | Landline |
| 603-883 | Consolidated Comm Of No. New England | Landline |
| 603-884 | Consolidated Comm Of No. New England | Landline |
| 603-885 | Consolidated Comm Of No. New England | Landline |
| 603-886 | Consolidated Comm Of No. New England | Landline |
| 603-887 | Granite State Tel. | Landline |
| 603-888 | Consolidated Comm Of No. New England | Landline |
| 603-889 | Consolidated Comm Of No. New England | Landline |
| 603-890 | Consolidated Comm Of No. New England | Landline |
| 603-891 | Consolidated Comm Of No. New England | Landline |
| 603-892 | T-Mobile (Omnipoint) | Landline |
| 603-893 | Consolidated Comm Of No. New England | Landline |
| 603-894 | Consolidated Comm Of No. New England | Landline |
| 603-895 | Consolidated Comm Of No. New England | Landline |
| 603-896 | Consolidated Comm Of No. New England | Landline |
| 603-897 | Consolidated Comm Of No. New England | Landline |
| 603-898 | Consolidated Comm Of No. New England | Landline |
| 603-899 | Consolidated Comm Of No. New England | Landline |
| 603-900 | FracTEL | Landline |
| 603-901 | Verizon Business (MCImetro) | Landline |
| 603-902 | Comcast (Xfinity Voice) | VoIP |
| 603-903 | Bell Atlantic Mobile | Wireless |
| 603-904 | Otel Telekom | Landline |
| 603-905 | Otel Telekom | Landline |
| 603-906 | Idt America | Landline |
| 603-910 | Windstream (Paetec) | Landline |
| 603-912 | Terra Nova Telecom | Landline |
| 603-913 | Windstream (Paetec) | Landline |
| 603-915 | Bell Atlantic Mobile | Wireless |
| 603-916 | T-Mobile (Omnipoint) | Landline |
| 603-918 | Bell Atlantic Mobile | Wireless |
| 603-919 | Bell Atlantic Mobile | Wireless |
| 603-921 | Bell Atlantic Mobile | Wireless |
| 603-922 | Consolidated Comm Of No. New England | Landline |
| 603-923 | Lumen (Level 3) | VoIP |
| 603-924 | Consolidated Comm Of No. New England | Landline |
| 603-925 | Freedom Ring Communications | Landline |
| 603-926 | Consolidated Comm Of No. New England | Landline |
| 603-927 | Merrimack County Tel. | Landline |
| 603-928 | Freedom Ring Communications | Landline |
| 603-929 | Consolidated Comm Of No. New England | Landline |
| 603-930 | AT&T Mobility | Wireless |
| 603-931 | Verizon Business (MCImetro) | Landline |
| 603-932 | Onvoy (Sinch) | VoIP |
| 603-933 | Bell Atlantic Mobile | Wireless |
| 603-934 | Consolidated Comm Of No. New England | Landline |
| 603-935 | Comcast (Xfinity Voice) | VoIP |
| 603-937 | Bell Atlantic Mobile | Wireless |
| 603-938 | Merrimack County Tel. | Landline |
| 603-939 | Consolidated Communications Of Maine Company | Landline |
| 603-941 | Verizon Business (MCImetro) | Landline |
| 603-942 | Consolidated Comm Of No. New England | Landline |
| 603-943 | T-Mobile (Omnipoint) | Landline |
| 603-944 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-945 | Onvoy (Sinch) | VoIP |
| 603-947 | Freedom Ring Communications | Landline |
| 603-948 | Idt America | Landline |
| 603-951 | Lumen (Level 3) | VoIP |
| 603-952 | Lumen (Level 3) | VoIP |
| 603-953 | Windstream (Paetec) | Landline |
| 603-956 | Vonage | VoIP |
| 603-957 | AT&T Mobility | Wireless |
| 603-960 | Bell Atlantic Mobile | Wireless |
| 603-961 | Comcast (Xfinity Voice) | VoIP |
| 603-964 | Consolidated Comm Of No. New England | Landline |
| 603-965 | Windstream (Paetec) | Landline |
| 603-966 | T-Mobile (Omnipoint) | Landline |
| 603-967 | Lumen (Level 3) | VoIP |
| 603-968 | Consolidated Comm Of No. New England | Landline |
| 603-969 | T-Mobile (Omnipoint) | Landline |
| 603-970 | AT&T Mobility | Wireless |
| 603-971 | Freedom Ring Communications | Landline |
| 603-973 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-974 | Comcast (Xfinity Voice) | VoIP |
| 603-975 | Comcast (Xfinity Voice) | VoIP |
| 603-977 | Comcast (Xfinity Voice) | VoIP |
| 603-978 | AT&T Mobility | Wireless |
| 603-986 | Bell Atlantic Mobile | Wireless |
| 603-988 | T-Mobile (Omnipoint) | Landline |
| 603-989 | Consolidated Comm Of No. New England | Landline |
| 603-991 | Bell Atlantic Mobile | Wireless |
| 603-992 | Lumen (Level 3) | VoIP |
| 603-994 | Freedom Ring Communications | Landline |
| 603-995 | T-Mobile (Omnipoint) | Landline |
| 603-996 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-997 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-998 | Metro by T-Mobile (MetroPCS) | Wireless |
| 603-999 | FracTEL | Landline |
Line type reflects the registry assignment; ported numbers can differ. Unknown 603 number calling? ActiveArmor® screens it before you ever look it up.
Cities & Communities in and around Area Code 603
Communities the 603 serves, filtered against the numbering registry’s rate centers, with each community’s key ZIP codes and the AT&T home internet available there. Cities link to their local AT&T internet page.
| City / community | Key ZIP codes | AT&T internet |
|---|---|---|
| Alton | 03809, 03855, 03810 | Internet Air |
| Canaan | 03741, 03748, 03240 | Internet Air |
| Claremont | 03743, 05030, 03745 | Internet Air |
| Concord | 03301, 03304, 03229 | Internet Air |
| Contoocook | 03229, 03303, 03242 | Internet Air |
| Derry | 03038, 03841, 03087 | Internet Air |
| Durham | 03824, 03823, 03820 | Internet Air |
| Enfield | 03748, 03766, 03750 | Check address |
| Epping | 03042, 03044, 03077 | Internet Air |
| Exeter | 03833, 03885, 03856 | Internet Air |
| Goffstown | 03045, 03102, 03070 | Internet Air |
| Hampton | 03842, 03862, 03844 | Internet Air |
| Hinsdale | 03451, 03441, 05354 | Internet Air |
| Hooksett | 03106, 03304, 03275 | Internet Air |
| Jaffrey | 03452, 03461, 03458 | Internet Air |
| Keene | 03431, 03462, 03467 | Internet Air |
| Laconia | 03246, 03253, 03249 | Internet Air |
| Lebanon | 03766, 03784, 05088 | Internet Air |
| Londonderry | 03053, 03087, 03038 | Internet Air |
| Loudon | 03258, 03307, 03301 | Internet Air |
| Manchester | 03101, 03104, 03103 | Internet Air |
| Meredith | 03253, 03226, 03246 | Internet Air |
| Nashua | 03060, 03062, 03064 | Internet Air |
| New Boston | 03070, 03057, 03043 | Internet Air |
| New Hampton | 03256, 03269, 03222 | Check address |
| Newfields | 03856, 03885, 03857 | Internet Air |
| Newmarket | 03857, 03856, 03824 | Internet Air |
| Pittsfield | 03263, 03218, 03258 | Check address |
| Plainfield | 03781, 05052, 03745 | Check address |
| Portsmouth | 03801, 03870, 03854 | Internet Air |
| Rochester | 03867, 03839, 03868 | Internet Air |
| Somersworth | 03878, 03869, 03901 | Internet Air |
| Suncook | 03275, 03106, 03304 | Internet Air |
| Troy | 03465, 03447, 03455 | Check address |
City list: AT&T service-area records and the public numbering registry. Key ZIPs: U.S. Census data for each community. Internet type: AT&T eligibility data, June 2026. Availability is always confirmed at your exact address.
603 Area Code Map
Area code 603 serves Manchester and nearby communities in NH.
↓ Printable PDF
Open the printable 603 map (PDF) · All New Hampshire area codes · Home internet in Manchester
Counties Covered by the 603 Area Code
Counties are served in whole or in part; population is U.S. Census Bureau ACS 2023. The 603 also reaches parts of Grafton County, Cheshire County, Belknap County, Sullivan County.
The 603, explained
Area Code 603: More Than a Number in Manchester
In Manchester, the 603 is more than digits on a caller ID. It’s one of the original area codes of 1947, and it has meant Manchester and surrounding communities ever since — 752 carrier prefixes keep its lines busy today, and an established 603 number still says you’ve been here a while.
The map tells its own story: Manchester and surrounding communities, with no overlay on its territory. The area and the code are still one and the same — rare in New Hampshire and getting rarer nationwide.
Keeping a 603 matters here. An existing 603 number ports to a new phone, a new carrier, or a new AT&T line, and stays yours anywhere in the U.S.
Need a new local number? Shop plans Keep your 603: bring it to AT&TInternet, wireless & stores in the 603
AT&T Home Internet in Area Code 603
AT&T home internet serves communities across area code 603, with AT&T Fiber where it’s built and AT&T Internet Air covering the gaps. Availability is decided address by address; every community in the table above links to its local internet page.
No data capsNo annual contractNo equipment fees
AT&T Fiber: Ltd. avail/areas. Speeds based on wired connection. Actual speeds vary. For 5-GIG, single device wired speed maximum 4.7Gbps. For more info., visit att.com/speed101. AT&T Internet Air: AT&T Internet Air not available in all areas. In rare cases, if your usage is contributing to congestion on the network, AT&T will greatly reduce your speed for a minimum of 30 min.
Pair it with wireless in an internet + wireless bundle. Run a business in the 603? AT&T Business Internet is available at many addresses.
Fiber install day in the 603Check your address ›
Moving to Area Code 603?
Set up home internet in area code 603 before the boxes arrive, and find your new community in the table above or check your exact address below.
Your number moves with you: port your 603 number from anywhere, or keep your old number when you arrive. An AT&T store nearby can handle the whole switch in one visit.
1 · Check your addressSee Fiber or Internet Air availability in seconds.
2 · Schedule for move-in dayInstall lined up before the boxes arrive.
3 · Keep your numberYour mobile number ports; your internet moves.
Get set up before move-in dayPlan your move ›
AT&T Wireless in Area Code 603
AT&T’s 5G network covers most of area code 603. ActiveArmor® spam blocking is included with every unlimited plan, your 603 number stays yours, and great cell phone deals in Manchester are a tap away.
5G across the 603ActiveArmor® includedKeep your 603 number
AT&T may temporarily slow data speeds if the network is busy. 5G req’s compatible plan & device. Coverage not available everywhere. Learn more at att.com/5Gforyou.
Need a new 603 number? Ask when you activate a line, and porting an existing 603 number keeps it yours.
Stay connected across ManchesterShop wireless plans ›
AT&T Stores in Area Code 603
Looking for cell phone stores in area code 603? These stores answer on 603 numbers — walk in for switching, porting, upgrades and hands-on help:
Every AT&T store in the region, company owned and authorized retailer alike, each with its own store page.
Real help from real people in ManchesterFind your store ›
All AT&T Stores with 603 Numbers
Every store below answers on a 603 number. Tap any number to call.
22 AT&T stores with 603 numbers
International Calling from Area Code 603
Calling abroad from area code 603? AT&T International Calling adds discounted or unlimited rates to 200+ countries on top of your existing plan, and unlimited texting from the U.S. to 200+ destinations is already included on AT&T unlimited plans.
Where the 603 calls most:IndiaCanadaDominican RepublicChinaBrazil
Top places of birth among foreign-born residents of the 603’s counties, U.S. Census Bureau ACS 2023.
Calling abroad from a 603 number: dial 011 + country code + number (or just + on a mobile). Traveling abroad instead? International Day Pass® takes your talk, text and data with you for a flat daily rate.
International Calling and International Day Pass® availability, rates and included destinations vary by plan; see att.com for the current country list.
Manchester calls the worldSee international plans ›
603 Area Code Quick Facts & Dialing
StateNew Hampshire
Time zoneEastern
OverlaysNonethe 603 stands alone
Established1947original code
Dialing10 digitsrequired since the 988 transition
Toll-free?Nogeographic code
Population1.3Mcounties served, Census 2023
Largest cityManchester+33 more ›
How to dial a 603 number
| Scenario | Format | Example |
|---|---|---|
| Local call (within the region) | 603 + 7-digit number | (603) 555-0100 |
| Long distance (within the U.S.) | 1 + 603 + 7-digit number | 1 (603) 555-0100 |
| Calling 603 from another country | +1 603 + 7-digit number | +1 603 555 0100 |
| From a mobile phone | (603) + 7-digit number | (603) 555-0100 |
A Short History of Area Code 603
One of the original area codes of 1947, the 603 has served Manchester and surrounding communities from the beginning. No splits or overlays have divided its territory since.
1947Assigned as one of the original 86 codes
In service since 1947, with no overlay on its territory today.
Nearby & Related Area Codes
Browse area codes by state: New Hampshire (1) · California (41) · Texas (29) · Florida (23) · all 50 states ›
Area Code 603 FAQ
What area code is 603?
603 is the area code for Manchester, New Hampshire and the surrounding communities. It appears at the front of every local 10-digit phone number in the area.
Where is area code 603?
Area code 603 serves Manchester, New Hampshire and nearby communities including Alstead, Alton, Alton Bay. The full city list is in the cities table above.
Why did I get a text message from a 603 number?
The most common 603 text scam opens like a wrong number (“u at home?”, “are you busy tomorrow?”) and tries to move you to WhatsApp. Don’t reply. Forward the text to 7726 (SPAM) and delete it. AT&T ActiveArmor® filters known scam senders automatically.
Who called me from area code 603?
A 603 number usually means Manchester or a nearby community, but spoofing is common. This page’s prefix lookup isn’t a reverse phone lookup — it can’t name the caller, but it shows the carrier, line type and community a number was issued to, which is often enough to judge a call.
What time zone is area code 603?
Eastern time. The live local time is shown at the top of this page.
Why am I getting calls from 603 numbers?
603 is an active, legitimate New Hampshire area code, but scammers spoof local numbers because people answer them. If there’s no voicemail, let it go. AT&T ActiveArmor® blocks and labels spam automatically, and you can report unwanted calls at reportfraud.ftc.gov. The spam report board above shows which 603 prefixes are drawing complaints right now.
Is 603 a toll-free number?
No. 603 is a geographic area code tied to Manchester, New Hampshire. Toll-free calls come from 800, 833, 844, 855, 866, 877 and 888 numbers.
When was area code 603 created?
Area code 603 entered service in 1947 and still covers Manchester and the surrounding New Hampshire communities today. The full timeline is in the history section above.
Which cities use area code 603?
The largest communities include Alton, Canaan, Claremont, Concord, Contoocook. The full list is in the cities table above.
Does AT&T offer service in the 603?
Yes: home internet, wireless and retail stores across the 603. Availability is checked address by address.
Can I still get a 603 number?
Yes. Carriers in Manchester and across the 603 still issue 603 numbers on new lines, and you can port an existing 603 number to any carrier.
Can I keep my 603 number if I move?
Yes. Phone numbers are portable: your 603 number can move with you anywhere in the U.S., whether you stay with your carrier or switch.
Sources: city and store data from AT&T records; prefix and carrier assignments from the public numbering registry (pulled July 2026). Facts regenerate monthly.
