Who Called Me from Area Code 423?
Quick answerA 423 call usually comes from Chattanooga 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 423 prefixes, right on this page.
- Curious who issued a number? Every 423 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 423 prefixes this month
PrefixReported patternReport volume
(423) 621-XXXXRobocall-heavy
(423) 588-XXXXRobocall-heavy
(423) 674-XXXXRobocall-heavy
(423) 696-XXXXRobocall-heavy
(423) 734-XXXXRobocall-heavy
463 unwanted-call reports naming 423 numbers in FTC Do Not Call complaint data, July 2–17, 2026. Consumer-reported and unverified.
Block spam calls in the 423, 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
- Access to the AT&T 5G network
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 423 a Scam?
No. 423 is a legitimate Chattanooga area code.
It’s added to the 615 region in 1995 and serves Chattanooga and surrounding communities. But legitimacy of the code says nothing about any single call. Scammers spoof local numbers constantly.
The code is realAdded to the 615 region in 1995; 762 assigned carrier prefixes serve it today.
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 423 numbers
The most common area code 423 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 423
Caller ID is easy to forge. Spoofing fakes the number a call displays. The real owner of that 423 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 423 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 423 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.
423 Area Code Prefix & Carrier Lookup
The three digits after the area code identify the carrier a number was issued to. All 762 assigned 423 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 423 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.
762 prefixes · updated monthly
| Prefix | Carrier | Line type |
|---|---|---|
| 423-200 | Lumen (Level 3) | VoIP |
| 423-201 | Lumen (Level 3) | VoIP |
| 423-202 | Verizon Business (MCImetro) | Landline |
| 423-203 | Boost Mobile | Landline |
| 423-205 | Onvoy (Sinch) | VoIP |
| 423-206 | Electric Power Board Of Chattanooga | Landline |
| 423-207 | Lumen (Level 3) | VoIP |
| 423-208 | AT&T Mobility | Wireless |
| 423-209 | AT&T Southeast (BellSouth) | Landline |
| 423-210 | United States Cellular | Wireless |
| 423-212 | Lumen (Level 3) | VoIP |
| 423-213 | T-Mobile | Wireless |
| 423-214 | United States Cellular | Wireless |
| 423-215 | Verizon Wireless | Wireless |
| 423-216 | Windstream (Paetec) | Landline |
| 423-217 | Lumen (Level 3) | VoIP |
| 423-218 | Lumen (Level 3) | VoIP |
| 423-219 | AT&T (Teleport Communications) | Landline |
| 423-220 | Windstream (Paetec) | Landline |
| 423-221 | Spok (paging) | Landline |
| 423-222 | AT&T Mobility | Wireless |
| 423-223 | AT&T Mobility | Wireless |
| 423-224 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-225 | Bandwidth.com | VoIP |
| 423-226 | Bandwidth.com | VoIP |
| 423-227 | Powertel Atlanta Licenses | Landline |
| 423-228 | Windstream (Paetec) | Landline |
| 423-229 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-230 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-231 | AT&T Mobility | Wireless |
| 423-232 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-233 | Pro Page Partners | Landline |
| 423-234 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-235 | AT&T Southeast (BellSouth) | Landline |
| 423-236 | Brightspeed | Landline |
| 423-237 | AT&T Mobility | Wireless |
| 423-238 | Brightspeed | Landline |
| 423-239 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-240 | Verizon Wireless | Wireless |
| 423-241 | Verizon Wireless | Wireless |
| 423-242 | AT&T (Teleport Communications) | Landline |
| 423-243 | AT&T (Teleport Communications) | Landline |
| 423-244 | AT&T (Teleport Communications) | Landline |
| 423-245 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-246 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-247 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-248 | United States Cellular | Wireless |
| 423-249 | AT&T Southeast (BellSouth) | Landline |
| 423-250 | Twin Lakes Communications | Landline |
| 423-251 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-252 | Windstream (Paetec) | Landline |
| 423-253 | Tellico Tel. Co. | Landline |
| 423-254 | Windstream (Paetec) | Landline |
| 423-255 | Powertel Atlanta Licenses | Landline |
| 423-256 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-257 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-258 | AT&T Mobility | Wireless |
| 423-259 | United States Cellular | Wireless |
| 423-260 | Verizon Wireless | Wireless |
| 423-261 | Tellico Tel. Co. | Landline |
| 423-262 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-263 | AT&T Southeast (BellSouth) | Landline |
| 423-264 | Comcast (Xfinity Voice) | VoIP |
| 423-265 | AT&T Southeast (BellSouth) | Landline |
| 423-266 | AT&T Southeast (BellSouth) | Landline |
| 423-267 | AT&T Southeast (BellSouth) | Landline |
| 423-268 | AT&T Mobility | Wireless |
| 423-269 | Verizon Wireless | Wireless |
| 423-270 | Verizon Wireless | Wireless |
| 423-271 | Verizon Wireless | Wireless |
| 423-272 | AT&T Southeast (BellSouth) | Landline |
| 423-273 | Powertel Nashville Licenses | Landline |
| 423-274 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-275 | Windstream (Paetec) | Landline |
| 423-276 | AT&T Mobility | Wireless |
| 423-277 | Powertel Nashville Licenses | Landline |
| 423-278 | Lumen (Level 3) | VoIP |
| 423-279 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-280 | Verizon Wireless | Wireless |
| 423-281 | Spectrum (Charter IP) | Landline |
| 423-282 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-283 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-284 | AT&T Mobility | Wireless |
| 423-285 | AT&T Mobility | Wireless |
| 423-286 | Highland Tel. Coop | Landline |
| 423-287 | AT&T Southeast (BellSouth) | Landline |
| 423-288 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-289 | Powertel Nashville Licenses | Landline |
| 423-290 | Verizon Wireless | Wireless |
| 423-291 | T-Mobile | Wireless |
| 423-292 | T-Mobile | Wireless |
| 423-293 | Powertel Nashville Licenses | Landline |
| 423-294 | Lumen (Level 3) | VoIP |
| 423-295 | Tellico Tel. Co. | Landline |
| 423-296 | AT&T Southeast (BellSouth) | Landline |
| 423-297 | Lumen (Level 3) | VoIP |
| 423-298 | AT&T Local | Landline |
| 423-299 | Lumen (Level 3) | VoIP |
| 423-300 | Verizon Wireless | Wireless |
| 423-301 | Verizon Business (MCImetro) | Landline |
| 423-302 | Bandwidth.com | VoIP |
| 423-303 | Windstream (Paetec) | Landline |
| 423-304 | AT&T Mobility | Wireless |
| 423-305 | Comcast (Xfinity Voice) | VoIP |
| 423-306 | Verizon Wireless | Wireless |
| 423-307 | Windstream (Paetec) | Landline |
| 423-308 | Windstream (Paetec) | Landline |
| 423-309 | Verizon Wireless | Wireless |
| 423-310 | AT&T Mobility | Wireless |
| 423-312 | Verizon Wireless | Wireless |
| 423-313 | Powertel Atlanta Licenses | Landline |
| 423-314 | Powertel Atlanta Licenses | Landline |
| 423-315 | AT&T Mobility | Wireless |
| 423-316 | Powertel Atlanta Licenses | Landline |
| 423-317 | AT&T Southeast (BellSouth) | Landline |
| 423-318 | AT&T Southeast (BellSouth) | Landline |
| 423-319 | Highland Tel. Coop | Landline |
| 423-320 | AT&T Mobility | Wireless |
| 423-321 | AT&T Southeast (BellSouth) | Landline |
| 423-322 | Verizon Wireless | Wireless |
| 423-323 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-324 | Highland Tel. Coop | Landline |
| 423-325 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-326 | AT&T Southeast (BellSouth) | Landline |
| 423-327 | Verizon Wireless | Wireless |
| 423-328 | Comcast (Xfinity Voice) | VoIP |
| 423-329 | AT&T Mobility | Wireless |
| 423-330 | AT&T Mobility | Wireless |
| 423-331 | Powertel Atlanta Licenses | Landline |
| 423-332 | AT&T Southeast (BellSouth) | Landline |
| 423-333 | Powertel Nashville Licenses | Landline |
| 423-334 | AT&T Southeast (BellSouth) | Landline |
| 423-335 | Verizon Wireless | Wireless |
| 423-336 | AT&T Southeast (BellSouth) | Landline |
| 423-337 | AT&T Southeast (BellSouth) | Landline |
| 423-338 | AT&T Southeast (BellSouth) | Landline |
| 423-339 | AT&T Southeast (BellSouth) | Landline |
| 423-340 | T-Mobile | Wireless |
| 423-341 | Verizon Wireless | Wireless |
| 423-342 | AT&T Mobility | Wireless |
| 423-343 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-344 | AT&T Southeast (BellSouth) | Landline |
| 423-345 | AT&T Southeast (BellSouth) | Landline |
| 423-346 | Highland Tel. Coop | Landline |
| 423-347 | Bandwidth.com | VoIP |
| 423-348 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-349 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-350 | Commio | Landline |
| 423-351 | AT&T Southeast (BellSouth) | Landline |
| 423-352 | Windstream (Paetec) | Landline |
| 423-353 | Windstream (Paetec) | Landline |
| 423-354 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-355 | AT&T Mobility | Wireless |
| 423-356 | AT&T Mobility | Wireless |
| 423-357 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-358 | Powertel Nashville Licenses | Landline |
| 423-359 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-360 | Verizon Wireless | Wireless |
| 423-361 | Verizon Wireless | Wireless |
| 423-362 | AT&T Mobility | Wireless |
| 423-363 | United States Cellular | Wireless |
| 423-364 | AT&T Mobility | Wireless |
| 423-365 | AT&T Southeast (BellSouth) | Landline |
| 423-366 | AT&T Mobility | Wireless |
| 423-367 | AT&T Mobility | Wireless |
| 423-368 | Verizon Wireless | Wireless |
| 423-369 | Highland Tel. Coop | Landline |
| 423-370 | Onvoy (Sinch) | VoIP |
| 423-371 | Powertel Nashville Licenses | Landline |
| 423-372 | Lumen (Level 3) | VoIP |
| 423-373 | Onvoy (Sinch) | VoIP |
| 423-374 | Onvoy (Sinch) | VoIP |
| 423-375 | At&T Enterprises | Landline |
| 423-376 | Onvoy (Sinch) | VoIP |
| 423-377 | United States Cellular | Wireless |
| 423-378 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-379 | Onvoy (Sinch) | VoIP |
| 423-380 | Bandwidth.com | VoIP |
| 423-381 | Powertel Nashville Licenses | Landline |
| 423-382 | Onvoy (Sinch) | VoIP |
| 423-383 | T-Mobile | Wireless |
| 423-384 | T-Mobile | Wireless |
| 423-385 | Windstream (Paetec) | Landline |
| 423-386 | AT&T Southeast (BellSouth) | Landline |
| 423-387 | AT&T Mobility | Wireless |
| 423-388 | T-Mobile | Wireless |
| 423-389 | Verizon Wireless | Wireless |
| 423-390 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-391 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-392 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-393 | Spectrum (Charter IP) | Landline |
| 423-394 | AT&T Mobility | Wireless |
| 423-395 | Powertel Nashville Licenses | Landline |
| 423-396 | Brightspeed | Landline |
| 423-397 | Bandwidth.com | VoIP |
| 423-398 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-399 | Bandwidth.com | VoIP |
| 423-400 | Powertel Atlanta Licenses | Landline |
| 423-401 | Windstream (Paetec) | Landline |
| 423-402 | Bandwidth.com | VoIP |
| 423-403 | Bandwidth.com | VoIP |
| 423-404 | AT&T Mobility | Wireless |
| 423-405 | Powertel Nashville Licenses | Landline |
| 423-406 | Comcast (Xfinity Voice) | VoIP |
| 423-407 | Twin Lakes Communications | Landline |
| 423-408 | AT&T (Teleport Communications) | Landline |
| 423-409 | Spok (paging) | Landline |
| 423-410 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-412 | Spok (paging) | Landline |
| 423-413 | Verizon Wireless | Wireless |
| 423-414 | Peace Communications | Landline |
| 423-415 | Verizon Wireless | Wireless |
| 423-416 | Verizon Wireless | Wireless |
| 423-417 | Verizon Business (MCImetro) | Landline |
| 423-418 | Verizon Wireless | Wireless |
| 423-419 | Verizon Wireless | Wireless |
| 423-420 | AT&T Southeast (BellSouth) | Landline |
| 423-421 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-422 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-423 | Spectrum (Charter IP) | Landline |
| 423-424 | Windstream (Paetec) | Landline |
| 423-425 | AT&T Southeast (BellSouth) | Landline |
| 423-426 | Verizon Wireless | Wireless |
| 423-427 | Onvoy (Sinch) | VoIP |
| 423-428 | Windstream (Paetec) | Landline |
| 423-429 | AT&T Mobility | Wireless |
| 423-430 | Nuso | Landline |
| 423-431 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-432 | Powertel Atlanta Licenses | Landline |
| 423-433 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-434 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-435 | Lumen (Level 3) | VoIP |
| 423-436 | Lumen (Level 3) | VoIP |
| 423-437 | Lumen (Level 3) | VoIP |
| 423-438 | Lumen (Level 3) | VoIP |
| 423-439 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-440 | Verizon Wireless | Wireless |
| 423-441 | Powertel Kentucky Licenses | Landline |
| 423-442 | AT&T Southeast (BellSouth) | Landline |
| 423-443 | Lumen (Level 3) | VoIP |
| 423-444 | Verizon Wireless | Wireless |
| 423-445 | At&T Enterprises | Landline |
| 423-446 | Bandwidth.com | VoIP |
| 423-447 | Bledsoe Tel. Coop. | Landline |
| 423-448 | AT&T Mobility | Wireless |
| 423-449 | Windstream (Paetec) | Landline |
| 423-450 | Comcast (Xfinity Voice) | VoIP |
| 423-451 | AT&T Southeast (BellSouth) | Landline |
| 423-452 | AT&T Southeast (BellSouth) | Landline |
| 423-453 | Lumen (Level 3) | VoIP |
| 423-454 | Lumen (Level 3) | VoIP |
| 423-455 | Lumen (Level 3) | VoIP |
| 423-456 | Telnyx | Landline |
| 423-457 | Verizon Wireless | Wireless |
| 423-458 | AT&T Mobility | Wireless |
| 423-459 | AT&T (Teleport Communications) | Landline |
| 423-460 | Bandwidth.com | VoIP |
| 423-461 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-462 | Tellico Tel. Co. | Landline |
| 423-463 | AT&T Southeast (BellSouth) | Landline |
| 423-464 | Powertel Atlanta Licenses | Landline |
| 423-465 | AT&T Mobility | Wireless |
| 423-466 | Powertel Nashville Licenses | Landline |
| 423-467 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-468 | Onvoy (Sinch) | VoIP |
| 423-469 | Spok (paging) | Landline |
| 423-470 | Verizon Wireless | Wireless |
| 423-471 | AT&T Mobility | Wireless |
| 423-472 | AT&T Southeast (BellSouth) | Landline |
| 423-473 | AT&T Southeast (BellSouth) | Landline |
| 423-474 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-475 | Powertel Atlanta Licenses | Landline |
| 423-476 | AT&T Southeast (BellSouth) | Landline |
| 423-477 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-478 | AT&T Southeast (BellSouth) | Landline |
| 423-479 | AT&T Southeast (BellSouth) | Landline |
| 423-480 | Verizon Wireless | Wireless |
| 423-481 | Bandwidth.com | VoIP |
| 423-482 | Lumen (Level 3) | VoIP |
| 423-483 | Verizon Wireless | Wireless |
| 423-484 | Lumen (Level 3) | VoIP |
| 423-485 | AT&T Southeast (BellSouth) | Landline |
| 423-486 | Verizon Wireless | Wireless |
| 423-487 | AT&T Southeast (BellSouth) | Landline |
| 423-488 | AT&T Mobility | Wireless |
| 423-489 | AT&T Mobility | Wireless |
| 423-490 | AT&T Southeast (BellSouth) | Landline |
| 423-491 | Lumen (CenturyLink) | Landline |
| 423-492 | AT&T Southeast (BellSouth) | Landline |
| 423-493 | AT&T Southeast (BellSouth) | Landline |
| 423-494 | Verizon Wireless | Wireless |
| 423-495 | AT&T Southeast (BellSouth) | Landline |
| 423-496 | AT&T Southeast (BellSouth) | Landline |
| 423-497 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-498 | Electric Power Board Of Chattanooga | Landline |
| 423-499 | AT&T Southeast (BellSouth) | Landline |
| 423-500 | Onvoy (Sinch) | VoIP |
| 423-501 | Skybest Communications | Landline |
| 423-502 | Verizon Wireless | Wireless |
| 423-503 | Powertel Atlanta Licenses | Landline |
| 423-504 | Powertel Atlanta Licenses | Landline |
| 423-505 | Powertel Atlanta Licenses | Landline |
| 423-506 | Verizon Wireless | Wireless |
| 423-507 | AT&T Southeast (BellSouth) | Landline |
| 423-508 | AT&T (Teleport Communications) | Landline |
| 423-509 | Onvoy (Sinch) | VoIP |
| 423-510 | AT&T Southeast (BellSouth) | Landline |
| 423-512 | Verizon Wireless | Wireless |
| 423-513 | AT&T (Teleport Communications) | Landline |
| 423-514 | Spok (paging) | Landline |
| 423-515 | Onvoy (Sinch) | VoIP |
| 423-516 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-517 | AT&T Southeast (BellSouth) | Landline |
| 423-518 | T-Mobile | Wireless |
| 423-519 | United States Cellular | Wireless |
| 423-520 | Windstream (Paetec) | Landline |
| 423-521 | Powertel Atlanta Licenses | Landline |
| 423-522 | AT&T Southeast (BellSouth) | Landline |
| 423-523 | Verizon Wireless | Wireless |
| 423-524 | Nuso | Landline |
| 423-525 | Lumen (Level 3) | VoIP |
| 423-526 | Brightspeed | Landline |
| 423-527 | Commio | Landline |
| 423-528 | Bandwidth.com | VoIP |
| 423-529 | Windstream (Paetec) | Landline |
| 423-530 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-531 | Electric Power Board Of Chattanooga | Landline |
| 423-532 | Windstream (Paetec) | Landline |
| 423-533 | Bledsoe Tel. Coop. | Landline |
| 423-534 | Verizon Wireless | Wireless |
| 423-535 | Verizon Business (MCImetro) | Landline |
| 423-536 | Windstream (Paetec) | Landline |
| 423-537 | Windstream (Paetec) | Landline |
| 423-538 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-539 | AT&T Mobility | Wireless |
| 423-540 | Onvoy (Sinch) | VoIP |
| 423-541 | Vonage | VoIP |
| 423-542 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-543 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-544 | Powertel Atlanta Licenses | Landline |
| 423-545 | Lumen (Level 3) | VoIP |
| 423-546 | Lumen (Level 3) | VoIP |
| 423-547 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-548 | Etc Communications | Landline |
| 423-549 | Vonage | VoIP |
| 423-550 | Bandwidth.com | VoIP |
| 423-551 | Lumen (CenturyLink) | Landline |
| 423-552 | Verizon Wireless | Wireless |
| 423-553 | AT&T Southeast (BellSouth) | Landline |
| 423-554 | Bledsoe Tel. Coop. | Landline |
| 423-556 | Bandwidth.com | VoIP |
| 423-557 | T-Mobile | Wireless |
| 423-558 | Onvoy (Sinch) | VoIP |
| 423-559 | AT&T Southeast (BellSouth) | Landline |
| 423-560 | Onvoy (Sinch) | VoIP |
| 423-561 | Onvoy (Sinch) | VoIP |
| 423-562 | AT&T Southeast (BellSouth) | Landline |
| 423-563 | AT&T Southeast (BellSouth) | Landline |
| 423-564 | Verizon Wireless | Wireless |
| 423-565 | Bandwidth.com | VoIP |
| 423-566 | AT&T Southeast (BellSouth) | Landline |
| 423-567 | AT&T Mobility | Wireless |
| 423-568 | Tellico Tel. Co. | Landline |
| 423-569 | Highland Tel. Coop | Landline |
| 423-570 | AT&T Southeast (BellSouth) | Landline |
| 423-571 | Verizon Wireless | Wireless |
| 423-572 | United States Cellular | Wireless |
| 423-573 | Bristol Tennessee Essential Services | Landline |
| 423-574 | Bristol Tennessee Essential Services | Landline |
| 423-575 | Bristol Tennessee Essential Services | Landline |
| 423-576 | AT&T Mobility | Wireless |
| 423-577 | AT&T Mobility | Wireless |
| 423-578 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-579 | Mountainet Telephone Company | Landline |
| 423-580 | AT&T Mobility | Wireless |
| 423-581 | AT&T Southeast (BellSouth) | Landline |
| 423-582 | AT&T Southeast (BellSouth) | Landline |
| 423-583 | Bandwidth.com | VoIP |
| 423-584 | AT&T Mobility | Wireless |
| 423-585 | AT&T Southeast (BellSouth) | Landline |
| 423-586 | AT&T Southeast (BellSouth) | Landline |
| 423-587 | AT&T Southeast (BellSouth) | Landline |
| 423-588 | Verizon Wireless | Wireless |
| 423-589 | AT&T Mobility | Wireless |
| 423-590 | Bandwidth.com | VoIP |
| 423-591 | Onvoy (Sinch) | VoIP |
| 423-592 | United States Cellular | Wireless |
| 423-593 | Powertel Atlanta Licenses | Landline |
| 423-594 | Onvoy (Sinch) | VoIP |
| 423-595 | Powertel Atlanta Licenses | Landline |
| 423-596 | AT&T Mobility | Wireless |
| 423-597 | Bandwidth.com | VoIP |
| 423-598 | AT&T Mobility | Wireless |
| 423-599 | Verizon Wireless | Wireless |
| 423-600 | Comcast (Xfinity Voice) | VoIP |
| 423-601 | AT&T Southeast (BellSouth) | Landline |
| 423-602 | Nuso | Landline |
| 423-603 | At&T Enterprises | Landline |
| 423-604 | Onvoy (Sinch) | VoIP |
| 423-605 | Verizon Wireless | Wireless |
| 423-606 | Comcast (Xfinity Voice) | VoIP |
| 423-607 | Verizon Wireless | Wireless |
| 423-608 | Verizon Wireless | Wireless |
| 423-609 | Verizon Wireless | Wireless |
| 423-610 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-612 | Verizon Wireless | Wireless |
| 423-613 | AT&T Southeast (BellSouth) | Landline |
| 423-614 | AT&T Southeast (BellSouth) | Landline |
| 423-615 | Comcast (Xfinity Voice) | VoIP |
| 423-616 | Onvoy (Sinch) | VoIP |
| 423-617 | Powertel Nashville Licenses | Landline |
| 423-618 | Verizon Wireless | Wireless |
| 423-619 | Verizon Wireless | Wireless |
| 423-620 | Verizon Wireless | Wireless |
| 423-621 | Verizon Wireless | Wireless |
| 423-622 | AT&T Southeast (BellSouth) | Landline |
| 423-623 | AT&T Southeast (BellSouth) | Landline |
| 423-624 | AT&T Southeast (BellSouth) | Landline |
| 423-625 | AT&T Southeast (BellSouth) | Landline |
| 423-626 | Brightspeed | Landline |
| 423-627 | Highland Tel. Coop | Landline |
| 423-628 | Highland Tel. Coop | Landline |
| 423-629 | AT&T Southeast (BellSouth) | Landline |
| 423-630 | Telescan | Landline |
| 423-631 | Spectrum (Charter IP) | Landline |
| 423-632 | Twin Lakes Communications | Landline |
| 423-633 | Telnyx | Landline |
| 423-634 | AT&T Southeast (BellSouth) | Landline |
| 423-635 | AT&T Mobility | Wireless |
| 423-636 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-637 | Verizon Wireless | Wireless |
| 423-638 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-639 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-640 | AT&T Local | Landline |
| 423-641 | Bandwidth.com | VoIP |
| 423-642 | AT&T Southeast (BellSouth) | Landline |
| 423-643 | Electric Power Board Of Chattanooga | Landline |
| 423-644 | AT&T Mobility | Wireless |
| 423-645 | AT&T Mobility | Wireless |
| 423-646 | T-Mobile | Wireless |
| 423-647 | T-Mobile | Wireless |
| 423-648 | Electric Power Board Of Chattanooga | Landline |
| 423-649 | AT&T Southeast (BellSouth) | Landline |
| 423-650 | Verizon Wireless | Wireless |
| 423-651 | Telnyx | Landline |
| 423-652 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-653 | AT&T Mobility | Wireless |
| 423-654 | Csc Wireless | Wireless |
| 423-655 | Spok (paging) | Landline |
| 423-656 | Csc Wireless | Wireless |
| 423-657 | Bandwidth.com | VoIP |
| 423-658 | AT&T Southeast (BellSouth) | Landline |
| 423-659 | AT&T (Teleport Communications) | Landline |
| 423-660 | Twilio | VoIP |
| 423-661 | Verizon Wireless | Wireless |
| 423-662 | Onvoy (Sinch) | VoIP |
| 423-663 | Highland Tel. Coop | Landline |
| 423-664 | Lumen (Level 3) | VoIP |
| 423-665 | Lumen (Level 3) | VoIP |
| 423-666 | Onvoy (Sinch) | VoIP |
| 423-667 | Verizon Wireless | Wireless |
| 423-668 | AT&T Southeast (BellSouth) | Landline |
| 423-669 | Onvoy (Sinch) | VoIP |
| 423-670 | Ip Horizon | Landline |
| 423-671 | Ip Horizon | Landline |
| 423-672 | Telnyx | Landline |
| 423-673 | Windstream (Paetec) | Landline |
| 423-674 | Onvoy (Sinch) | VoIP |
| 423-675 | Onvoy (Sinch) | VoIP |
| 423-676 | T-Mobile | Wireless |
| 423-677 | T-Mobile | Wireless |
| 423-678 | Onvoy (Sinch) | VoIP |
| 423-679 | Onvoy (Sinch) | VoIP |
| 423-680 | Verizon Wireless | Wireless |
| 423-681 | Verizon Wireless | Wireless |
| 423-682 | Verizon Wireless | Wireless |
| 423-683 | AT&T Mobility | Wireless |
| 423-684 | Bandwidth.com | VoIP |
| 423-685 | AT&T Mobility | Wireless |
| 423-686 | Onvoy (Sinch) | VoIP |
| 423-687 | AT&T Mobility | Wireless |
| 423-688 | Telnyx | Landline |
| 423-689 | Bandwidth.com | VoIP |
| 423-690 | Telnyx | Landline |
| 423-691 | Onvoy (Sinch) | VoIP |
| 423-692 | Skybest Communications | Landline |
| 423-693 | Lumen (Level 3) | VoIP |
| 423-694 | Powertel Nashville Licenses | Landline |
| 423-695 | AT&T Mobility | Wireless |
| 423-696 | Powertel Nashville Licenses | Landline |
| 423-697 | AT&T Southeast (BellSouth) | Landline |
| 423-698 | AT&T Southeast (BellSouth) | Landline |
| 423-701 | United States Cellular | Wireless |
| 423-702 | Lumen (Level 3) | VoIP |
| 423-703 | Onvoy (Sinch) | VoIP |
| 423-704 | AT&T Mobility | Wireless |
| 423-705 | Nuso | Landline |
| 423-707 | AT&T Mobility | Wireless |
| 423-708 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-709 | Windstream (Paetec) | Landline |
| 423-710 | Comcast (Xfinity Voice) | VoIP |
| 423-712 | Bandwidth.com | VoIP |
| 423-713 | Comcast (Xfinity Voice) | VoIP |
| 423-714 | Windstream (Paetec) | Landline |
| 423-715 | Verizon Wireless | Wireless |
| 423-716 | Windstream (Paetec) | Landline |
| 423-717 | Powertel Nashville Licenses | Landline |
| 423-718 | Verizon Wireless | Wireless |
| 423-719 | Nuso | Landline |
| 423-720 | Bandwidth.com | VoIP |
| 423-721 | United States Cellular | Wireless |
| 423-722 | Lumen (Level 3) | VoIP |
| 423-723 | Lumen (Level 3) | VoIP |
| 423-724 | Windstream (Paetec) | Landline |
| 423-725 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-726 | Verizon Wireless | Wireless |
| 423-727 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-728 | AT&T Southeast (BellSouth) | Landline |
| 423-729 | Spectrum (Charter IP) | Landline |
| 423-730 | Comcast (Xfinity Voice) | VoIP |
| 423-731 | Spectrum (Charter IP) | Landline |
| 423-732 | Verizon Wireless | Wireless |
| 423-733 | AT&T Southeast (BellSouth) | Landline |
| 423-734 | Onvoy (Sinch) | VoIP |
| 423-735 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-736 | Verizon Wireless | Wireless |
| 423-737 | AT&T Mobility | Wireless |
| 423-738 | AT&T Mobility | Wireless |
| 423-739 | Skyline Tel. Membership | Landline |
| 423-740 | Verizon Wireless | Wireless |
| 423-741 | AT&T Mobility | Wireless |
| 423-742 | Verizon Wireless | Wireless |
| 423-743 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-744 | AT&T Southeast (BellSouth) | Landline |
| 423-745 | AT&T Southeast (BellSouth) | Landline |
| 423-746 | AT&T Southeast (BellSouth) | Landline |
| 423-747 | AT&T Mobility | Wireless |
| 423-748 | AT&T Mobility | Wireless |
| 423-749 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-750 | Skye Telecom LLC dba Skyetel | Landline |
| 423-751 | AT&T Southeast (BellSouth) | Landline |
| 423-752 | AT&T Southeast (BellSouth) | Landline |
| 423-753 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-754 | Verizon Wireless | Wireless |
| 423-755 | AT&T Southeast (BellSouth) | Landline |
| 423-756 | AT&T Southeast (BellSouth) | Landline |
| 423-757 | AT&T Southeast (BellSouth) | Landline |
| 423-758 | Windstream (Paetec) | Landline |
| 423-759 | Onvoy (Sinch) | VoIP |
| 423-760 | AT&T Mobility | Wireless |
| 423-761 | Lumen (Level 3) | VoIP |
| 423-762 | Verizon Wireless | Wireless |
| 423-763 | AT&T Southeast (BellSouth) | Landline |
| 423-764 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-765 | Spectrum (Charter IP) | Landline |
| 423-766 | Onvoy (Sinch) | VoIP |
| 423-767 | AT&T Mobility | Wireless |
| 423-768 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-769 | Bandwidth.com | VoIP |
| 423-770 | Onvoy (Sinch) | VoIP |
| 423-771 | At&T Enterprises | Landline |
| 423-772 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-773 | T-Mobile | Wireless |
| 423-774 | AT&T Mobility | Wireless |
| 423-775 | AT&T Southeast (BellSouth) | Landline |
| 423-776 | AT&T Mobility | Wireless |
| 423-777 | Onvoy (Sinch) | VoIP |
| 423-778 | AT&T Southeast (BellSouth) | Landline |
| 423-779 | Windstream (Paetec) | Landline |
| 423-780 | AT&T Southeast (BellSouth) | Landline |
| 423-781 | Lumen (Level 3) | VoIP |
| 423-782 | Windstream (Paetec) | Landline |
| 423-783 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-784 | AT&T Southeast (BellSouth) | Landline |
| 423-785 | AT&T Southeast (BellSouth) | Landline |
| 423-786 | Onvoy (Sinch) | VoIP |
| 423-787 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-788 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-789 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-790 | Spectrum (Charter IP) | Landline |
| 423-791 | T-Mobile | Wireless |
| 423-792 | Boost Mobile | Landline |
| 423-793 | Lumen (Level 3) | VoIP |
| 423-794 | Windstream (Paetec) | Landline |
| 423-795 | Spok (paging) | Landline |
| 423-796 | Boost Mobile | Landline |
| 423-797 | Verizon Wireless | Wireless |
| 423-798 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-799 | Lumen (Level 3) | VoIP |
| 423-800 | AT&T Mobility | Wireless |
| 423-801 | United States Cellular | Wireless |
| 423-802 | Verizon Wireless | Wireless |
| 423-803 | Electric Power Board Of Chattanooga | Landline |
| 423-804 | Bandwidth.com | VoIP |
| 423-805 | Onvoy (Sinch) | VoIP |
| 423-806 | Bandwidth.com | VoIP |
| 423-807 | AT&T Mobility | Wireless |
| 423-808 | Comcast (Xfinity Voice) | VoIP |
| 423-809 | Lumen (Level 3) | VoIP |
| 423-810 | AT&T (Teleport Communications) | Landline |
| 423-812 | Bandwidth.com | VoIP |
| 423-813 | Verizon Wireless | Wireless |
| 423-814 | Telnyx | Landline |
| 423-815 | Comcast (Xfinity Voice) | VoIP |
| 423-816 | AT&T Mobility | Wireless |
| 423-817 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-818 | Onvoy (Sinch) | VoIP |
| 423-819 | Nuso | Landline |
| 423-820 | Onvoy (Sinch) | VoIP |
| 423-821 | AT&T Southeast (BellSouth) | Landline |
| 423-822 | AT&T Southeast (BellSouth) | Landline |
| 423-823 | T-Mobile | Wireless |
| 423-824 | Onvoy (Sinch) | VoIP |
| 423-825 | AT&T Southeast (BellSouth) | Landline |
| 423-826 | Windstream (Paetec) | Landline |
| 423-827 | AT&T Southeast (BellSouth) | Landline |
| 423-829 | AT&T Mobility | Wireless |
| 423-830 | Onvoy (Sinch) | VoIP |
| 423-831 | Nuso | Landline |
| 423-832 | Ton80 Communications | Landline |
| 423-833 | T-Mobile | Wireless |
| 423-834 | Lumen (Level 3) | VoIP |
| 423-835 | AT&T Mobility | Wireless |
| 423-836 | Verizon Wireless | Wireless |
| 423-837 | AT&T Southeast (BellSouth) | Landline |
| 423-838 | AT&T Mobility | Wireless |
| 423-839 | Spectrum (Charter IP) | Landline |
| 423-840 | Onvoy (Sinch) | VoIP |
| 423-841 | T-Mobile | Wireless |
| 423-842 | AT&T Southeast (BellSouth) | Landline |
| 423-843 | AT&T Southeast (BellSouth) | Landline |
| 423-844 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-845 | Verizon Wireless | Wireless |
| 423-846 | AT&T Southeast (BellSouth) | Landline |
| 423-847 | AT&T Southeast (BellSouth) | Landline |
| 423-848 | Skye Telecom LLC dba Skyetel | Landline |
| 423-849 | AT&T Mobility | Wireless |
| 423-850 | Onvoy (Sinch) | VoIP |
| 423-851 | Brightspeed | Landline |
| 423-852 | Lumen (Level 3) | VoIP |
| 423-853 | Twilio | VoIP |
| 423-854 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-855 | AT&T Southeast (BellSouth) | Landline |
| 423-856 | Powertel Nashville Licenses | Landline |
| 423-857 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-858 | Onvoy (Sinch) | VoIP |
| 423-859 | Onvoy (Sinch) | VoIP |
| 423-860 | Commio | Landline |
| 423-862 | Onvoy (Sinch) | VoIP |
| 423-863 | Verizon Wireless | Wireless |
| 423-864 | Onvoy Spectrum (Sinch) | VoIP |
| 423-866 | Comcast (Xfinity Voice) | VoIP |
| 423-867 | AT&T Southeast (BellSouth) | Landline |
| 423-868 | Onvoy (Sinch) | VoIP |
| 423-869 | AT&T Southeast (BellSouth) | Landline |
| 423-870 | AT&T Southeast (BellSouth) | Landline |
| 423-871 | AT&T Mobility | Wireless |
| 423-872 | Terra Nova Telecom | Landline |
| 423-873 | FracTEL | Landline |
| 423-874 | AT&T Southeast (BellSouth) | Landline |
| 423-875 | AT&T Southeast (BellSouth) | Landline |
| 423-876 | AT&T Southeast (BellSouth) | Landline |
| 423-877 | AT&T Southeast (BellSouth) | Landline |
| 423-878 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-879 | Onvoy (Sinch) | VoIP |
| 423-880 | Onvoy (Sinch) | VoIP |
| 423-881 | Bledsoe Tel. Coop. | Landline |
| 423-882 | AT&T Southeast (BellSouth) | Landline |
| 423-883 | AT&T Southeast (BellSouth) | Landline |
| 423-884 | Tellico Tel. Co. | Landline |
| 423-885 | Onvoy (Sinch) | VoIP |
| 423-886 | AT&T Southeast (BellSouth) | Landline |
| 423-887 | Tellico Tel. Co. | Landline |
| 423-888 | Onvoy (Sinch) | VoIP |
| 423-889 | Powertel Atlanta Licenses | Landline |
| 423-890 | AT&T Mobility | Wireless |
| 423-892 | AT&T Southeast (BellSouth) | Landline |
| 423-893 | AT&T Southeast (BellSouth) | Landline |
| 423-894 | AT&T Southeast (BellSouth) | Landline |
| 423-895 | T-Mobile | Wireless |
| 423-896 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-897 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-898 | Powertel Atlanta Licenses | Landline |
| 423-899 | AT&T Southeast (BellSouth) | Landline |
| 423-900 | Onvoy (Sinch) | VoIP |
| 423-902 | AT&T Mobility | Wireless |
| 423-903 | AT&T Mobility | Wireless |
| 423-904 | Onvoy Spectrum (Sinch) | VoIP |
| 423-905 | Onvoy Spectrum (Sinch) | VoIP |
| 423-906 | Callworks Corporation | Landline |
| 423-907 | AT&T Southeast (BellSouth) | Landline |
| 423-908 | Commio | Landline |
| 423-909 | Onvoy Spectrum (Sinch) | VoIP |
| 423-910 | Comcast (Xfinity Voice) | VoIP |
| 423-912 | AT&T Mobility | Wireless |
| 423-913 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-914 | Verizon Wireless | Wireless |
| 423-915 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-917 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-918 | AT&T Mobility | Wireless |
| 423-919 | Onvoy (Sinch) | VoIP |
| 423-920 | AT&T Mobility | Wireless |
| 423-921 | AT&T Southeast (BellSouth) | Landline |
| 423-922 | FracTEL | Landline |
| 423-923 | AT&T Mobility | Wireless |
| 423-924 | Peerless Network | VoIP |
| 423-925 | Ton80 Communications | Landline |
| 423-926 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-927 | Ton80 Communications | Landline |
| 423-928 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-929 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-930 | Mountainet Telephone Company | Landline |
| 423-932 | Ton80 Communications | Landline |
| 423-933 | Windstream (Paetec) | Landline |
| 423-934 | Ton80 Communications | Landline |
| 423-936 | Comcast (Xfinity Voice) | VoIP |
| 423-938 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-939 | Windstream (Paetec) | Landline |
| 423-940 | Commio | Landline |
| 423-941 | Comcast (Xfinity Voice) | VoIP |
| 423-942 | AT&T Southeast (BellSouth) | Landline |
| 423-943 | T-Mobile | Wireless |
| 423-944 | Scott County Tel. Coop. | Landline |
| 423-945 | Spectrum (Charter IP) | Landline |
| 423-946 | T-Mobile | Wireless |
| 423-948 | T-Mobile | Wireless |
| 423-949 | Bledsoe Tel. Coop. | Landline |
| 423-951 | Powertel Atlanta Licenses | Landline |
| 423-952 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-953 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-954 | AT&T Southeast (BellSouth) | Landline |
| 423-955 | FracTEL | Landline |
| 423-956 | Verizon Wireless | Wireless |
| 423-957 | T-Mobile | Wireless |
| 423-960 | Peerless Network | VoIP |
| 423-961 | AT&T Southeast (BellSouth) | Landline |
| 423-963 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-965 | Highland Tel. Coop | Landline |
| 423-966 | FracTEL | Landline |
| 423-967 | Metro by T-Mobile (MetroPCS) | Wireless |
| 423-968 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-969 | Verizon Wireless | Wireless |
| 423-972 | T-Mobile | Wireless |
| 423-973 | Lumen (Level 3) | VoIP |
| 423-975 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-977 | FracTEL | Landline |
| 423-978 | Wavenation | Landline |
| 423-979 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-980 | Onvoy (Sinch) | VoIP |
| 423-981 | Wavenation | Landline |
| 423-987 | AT&T Mobility | Wireless |
| 423-989 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-990 | United Telephone-Southeast-Tn dba Centurylink | Landline |
| 423-991 | AT&T Mobility | Wireless |
| 423-992 | Terra Nova Telecom | Landline |
| 423-993 | Hd Carrier | Landline |
| 423-994 | AT&T Mobility | Wireless |
| 423-995 | Hd Carrier | Landline |
| 423-996 | Powertel Atlanta Licenses | Landline |
| 423-997 | Bandwidth.com | VoIP |
| 423-998 | Commio | Landline |
| 423-999 | Powertel Nashville Licenses | Landline |
Line type reflects the registry assignment; ported numbers can differ. Unknown 423 number calling? ActiveArmor® screens it before you ever look it up.
Cities & Communities in and around Area Code 423
Communities the 423 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 |
|---|---|---|
| Apison | 37302, 37315, 30710 | Fiber up to 1 GIG |
| Athens | 37303, 37826 | Fiber up to 5 GIG |
| Bean Station | 37708, 37811, 37881 | Internet Air |
| Benton | 37307, 37325, 37361 | Internet Air |
| Blountville | 37617, 37686 | Internet Air |
| Bluff City | 37618, 37686, 37694 | Internet Air |
| Briceville | 37769, 37714, 37716 | Check address |
| Bristol | 24201, 24202, 37618 | Internet Air |
| Bulls Gap | 37711, 37891, 37860 | Internet Air |
| Calhoun | 37309, 37310, 37370 | Internet Air |
| Caryville | 37757, 37714, 37769 | Internet Air |
| Charleston | 37309, 37310, 37370 | Internet Air |
| Chattanooga | 37406, 37351, 37403 | Fiber up to 5 GIG |
| Church Hill | 37642, 37645, 37873 | Internet Air |
| Cleveland | 37312, 37311, 37323 | Fiber up to 5 GIG |
| College Dale | — | Fiber up to 5 GIG |
| Cosby | 37722 | Internet Air |
| Cumberland Gap | 40965, 37724, 37752 | Internet Air |
| Dayton | 37321, 37373, 37332 | Internet Air |
| Decatur | 37322 | Internet Air |
| Delano | 37325, 37331, 37369 | Internet Air |
| Dunlap | 37327, 37365 | Internet Air |
| East Ridge | 37412, 37411, 37404 | Check address |
| Elizabethton | 37694, 37682, 37601 | Internet Air |
| Englewood | 37329, 37331 | Internet Air |
| Erwin | 37650, 37692 | Internet Air |
| Etowah | 37331, 37329, 37325 | Internet Air |
| Fall Branch | 37656 | Internet Air |
| Farner | 37333, 37391 | Internet Air |
| Graysville | 37373, 37321, 37338 | Internet Air |
| Greeneville | 37616, 37743, 37745 | Internet Air |
| Harrison | 37416, 37343, 37363 | Fiber up to 5 GIG |
| Harrogate | 37724, 37752, 40965 | Internet Air |
| Helenwood | 37755, 37841, 37852 | Internet Air |
| Huntsville | 37755, 37841, 37852 | Internet Air |
| Jacksboro | 37757, 37766, 37714 | Fiber up to 5 GIG |
| Jasper | 37347, 37340, 37374 | Internet Air |
| Jellico | 37762, 37819, 37729 | Internet Air |
| Johnson City | 37614, 37604, 37601 | Internet Air |
| Jonesborough | 37659, 37604, 37690 | Internet Air |
| Kimball | 37347, 37380 | Check address |
| Kingsport | 37660, 37664, 37665 | Internet Air |
| LaFollette | — | Check address |
| Lakesite | 37341, 37343, 37379 | Check address |
| Lookout Mountain | 37350, 37409, 37410 | Check address |
| Madisonville | 37354, 37874 | Internet Air |
| McDonald | 37353, 37311, 37363 | Fiber up to 5 GIG |
| Mooresburg | 37811, 37708, 37891 | Internet Air |
| Morristown | 37814, 37813, 37877 | Fiber up to 5 GIG |
| Mosheim | 37818, 37809, 37711 | Internet Air |
| Mount Carmel | 37645, 37642, 37665 | Internet Air |
| Mountain City | 37683, 37688, 28615 | Internet Air |
| New Hope | 37347, 35958, 35740 | Check address |
| New Tazewell | 37825, 37879, 37888 | Internet Air |
| Newport | 37821 | Internet Air |
| Niota | 37826, 37303, 37874 | Internet Air |
| Ocoee | 37361, 37307, 37323 | Internet Air |
| Oneida | 37841, 37755 | Internet Air |
| Ooltewah | 37315, 37363, 37302 | Fiber up to 5 GIG |
| Orme | 35740, 37380 | Check address |
| Parrottsville | 37843, 37713, 37821 | Internet Air |
| Philadelphia | 37774, 37846, 37874 | Internet Air |
| Pikeville | 37367 | Internet Air |
| Powells Crossroads | 37397, 37405, 37377 | Check address |
| Red Bank | 37415, 37351, 37406 | Check address |
| Riceville | 37370, 37303, 37309 | Internet Air |
| Ridgeside | 37411, 37404, 37406 | Check address |
| Robbins | 37852, 37732, 37755 | Internet Air |
| Rogersville | 37857 | Internet Air |
| Russellville | 37860, 37891, 37811 | Internet Air |
| Sale Creek | 37373, 37308, 37338 | Internet Air |
| Sequatchie | 37347, 37374, 37340 | Check address |
| Signal Mountain | 37405, 37415, 37377 | Internet Air |
| Sneedville | 37869 | Internet Air |
| Soddy Daisy | — | Internet Air |
| South Pittsburg | 35740, 37380, 37347 | Internet Air |
| Spring City | 37381, 37337, 37332 | Internet Air |
| Surgoinsville | 37873, 37857 | Internet Air |
| Sweetwater | 37874, 37846, 37826 | Fiber up to 5 GIG |
| Tazewell | 37879, 37825, 37752 | Internet Air |
| Telford | 37690, 37659, 37681 | Internet Air |
| Tellico Plains | 37385 | Internet Air |
| Unicoi | 37692, 37682, 37614 | Internet Air |
| Vonore | 37742 | Internet Air |
| Walden | 37415, 37377, 37405 | Check address |
| Wartburg | 37887, 37770, 37829 | Internet Air |
| Whiteside | 37396, 37340, 30757 | Check address |
| Whitwell | 37397 | Internet Air |
| Winfield | 42649, 37892, 37841 | Internet Air |
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.
423 Area Code Map
Area code 423 serves Chattanooga and nearby communities in TN.
↓ Printable PDF
Open the printable 423 map (PDF) · All Tennessee area codes · Home internet in Chattanooga
Counties Covered by the 423 Area Code
Counties are served in whole or in part; population is U.S. Census Bureau ACS 2023. The 423 also reaches parts of Bradley County, Anderson County, Greene County, Hamblen County, Hawkins County, Carter County, Loudon County, McMinn County and 16 more.
The 423, explained
Area Code 423: More Than a Number in Chattanooga
In Chattanooga, the 423 is more than digits on a caller ID. It arrived in 1995, layered onto the 615 region, and it has meant Chattanooga and surrounding communities ever since — 762 carrier prefixes keep its lines busy today, and an established 423 number still says you’ve been here a while.
The map tells its own story: Chattanooga and surrounding communities, with no overlay on its territory. The area and the code are still one and the same — rare in Tennessee and getting rarer nationwide.
Keeping a 423 matters here. An existing 423 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 423: bring it to AT&TInternet, wireless & stores in the 423
AT&T Home Internet in Area Code 423
AT&T home internet serves communities across area code 423, 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 423? AT&T Business Internet is available at many addresses.
Fiber install day in the 423Check your address ›
Moving to Area Code 423?
Set up home internet in area code 423 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 423 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 423
AT&T’s 5G network covers most of area code 423. ActiveArmor® spam blocking is included with every unlimited plan, your 423 number stays yours, and great cell phone deals in Chattanooga are a tap away.
5G across the 423ActiveArmor® includedKeep your 423 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 423 number? Ask when you activate a line, and porting an existing 423 number keeps it yours.
Stay connected across ChattanoogaShop wireless plans ›
AT&T Stores in Area Code 423
Looking for cell phone stores in area code 423? These stores answer on 423 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 ChattanoogaFind your store ›
All AT&T Stores with 423 Numbers
Every store below answers on a 423 number. Tap any number to call.
18 AT&T stores with 423 numbers
International Calling from Area Code 423
Calling abroad from area code 423? 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 423 calls most:MexicoGuatemalaHondurasIndiaVenezuela
Top places of birth among foreign-born residents of the 423’s counties, U.S. Census Bureau ACS 2023.
Calling abroad from a 423 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.
Chattanooga calls the worldSee international plans ›
423 Area Code Quick Facts & Dialing
StateTennessee
Time zoneEastern
OverlaysNonethe 423 stands alone
Established1995added to the 615 region
Dialing10 digits7-digit local calls may still work
Toll-free?Nogeographic code
Population1.72Mcounties served, Census 2023
Largest cityChattanooga+88 more ›
How to dial a 423 number
| Scenario | Format | Example |
|---|---|---|
| Local call (within the region) | 423 + 7-digit number | (423) 555-0100 |
| Long distance (within the U.S.) | 1 + 423 + 7-digit number | 1 (423) 555-0100 |
| Calling 423 from another country | +1 423 + 7-digit number | +1 423 555 0100 |
| From a mobile phone | (423) + 7-digit number | (423) 555-0100 |
A Short History of Area Code 423
Added in 1995 to the 615 region, the 423 serves Chattanooga and surrounding communities.
Area Code 423 vs the related codes
| Code | Added | Type | Where it works |
|---|---|---|---|
| 423 | 1995 | Overlay | Chattanooga and surrounding communities |
| 865 | 1999 | Split | Territory carved from the 423 |
| 729 | 2025 | Split | Territory carved from the 423 |
Same rates, same local dialing: a number from any code in the region works exactly like a 423.
Nearby & Related Area Codes
Browse area codes by state: Tennessee (8) · California (41) · Texas (29) · Florida (23) · all 50 states ›
Area Code 423 FAQ
What area code is 423?
423 is the area code for Chattanooga, Tennessee and the surrounding communities. It appears at the front of every local 10-digit phone number in the area.
Where is area code 423?
Area code 423 serves Chattanooga, Tennessee and nearby communities including Afton, Apison, Athens. The full city list is in the cities table above.
Why did I get a text message from a 423 number?
The most common 423 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 423?
A 423 number usually means Chattanooga 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 423?
Eastern time. The live local time is shown at the top of this page.
Why am I getting calls from 423 numbers?
423 is an active, legitimate Tennessee 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 423 prefixes are drawing complaints right now.
Is 423 a toll-free number?
No. 423 is a geographic area code tied to Chattanooga, Tennessee. Toll-free calls come from 800, 833, 844, 855, 866, 877 and 888 numbers.
When was area code 423 created?
Area code 423 entered service in 1995 and still covers Chattanooga and the surrounding Tennessee communities today. The full timeline is in the history section above.
Which cities use area code 423?
The largest communities include Apison, Athens, Bean Station, Benton, Blountville. The full list is in the cities table above.
Does AT&T offer service in the 423?
Yes: home internet, wireless and retail stores across the 423. Availability is checked address by address.
Can I still get a 423 number?
Yes. Carriers in Chattanooga and across the 423 still issue 423 numbers on new lines, and you can port an existing 423 number to any carrier.
Can I keep my 423 number if I move?
Yes. Phone numbers are portable: your 423 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.
