Who Called Me from Area Code 737?
- 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 737 prefixes, right on this page.
- Curious who issued a number? Every 737 prefix belongs to a carrier — the registry names it.
130 unwanted-call reports naming 737 numbers in FTC Do Not Call complaint data, July 2–17, 2026. Consumer-reported and unverified.
Block spam calls in the 737, 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℠ trial- 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 737 a Scam?
It’s added to the 512 region in 2013 and serves Austin and central Texas. But legitimacy of the code says nothing about any single call. Scammers spoof local numbers constantly.
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 737 numbers
The most common area code 737 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 737
Caller ID is easy to forge. Spoofing fakes the number a call displays. The real owner of that 737 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 737 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 737 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.
737 Area Code Prefix & Carrier Lookup
The three digits after the area code identify the carrier a number was issued to. All 327 assigned 737 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 737 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.
| Prefix | Carrier | Line type |
|---|---|---|
| 737-200 | Onvoy (Sinch) | VoIP |
| 737-201 | Onvoy (Sinch) | VoIP |
| 737-202 | Lumen (Level 3) | VoIP |
| 737-203 | Verizon Business (MCImetro) | Landline |
| 737-204 | Onvoy (Sinch) | VoIP |
| 737-205 | Onvoy (Sinch) | VoIP |
| 737-206 | T-Mobile | Wireless |
| 737-207 | AT&T (Teleport Communications) | Landline |
| 737-208 | Verizon Wireless | Wireless |
| 737-209 | Spectrum (TWC IP) | Landline |
| 737-210 | Onvoy (Sinch) | VoIP |
| 737-212 | Spectrum (TWC IP) | Landline |
| 737-213 | Verizon Wireless | Wireless |
| 737-214 | Onvoy (Sinch) | VoIP |
| 737-215 | Verizon Wireless | Wireless |
| 737-216 | Bandwidth.com | VoIP |
| 737-217 | T-Mobile | Wireless |
| 737-218 | Peerless Network | VoIP |
| 737-219 | AT&T (Teleport Communications) | Landline |
| 737-220 | Vonage | VoIP |
| 737-221 | T-Mobile | Wireless |
| 737-222 | Foremost Telecommunications Corporation | Landline |
| 737-223 | AT&T (Teleport Communications) | Landline |
| 737-224 | Austin Bestline Company | Landline |
| 737-225 | Metro by T-Mobile (MetroPCS) | Wireless |
| 737-226 | Verizon Wireless | Wireless |
| 737-227 | Lumen (CenturyLink) | Landline |
| 737-228 | AT&T Mobility | Wireless |
| 737-229 | AT&T (Teleport Communications) | Landline |
| 737-230 | AT&T Mobility | Wireless |
| 737-231 | Bandwidth.com | VoIP |
| 737-232 | T-Mobile | Wireless |
| 737-233 | Verizon Wireless | Wireless |
| 737-234 | Bandwidth.com | VoIP |
| 737-235 | Verizon Wireless | Wireless |
| 737-236 | Bandwidth.com | VoIP |
| 737-237 | Onvoy (Sinch) | VoIP |
| 737-238 | Bandwidth.com | VoIP |
| 737-239 | Voip Innovations | VoIP |
| 737-240 | Verizon Wireless | Wireless |
| 737-241 | Onvoy (Sinch) | VoIP |
| 737-242 | Bandwidth.com | VoIP |
| 737-243 | Peerless Network | VoIP |
| 737-244 | Bandwidth.com | VoIP |
| 737-245 | Onvoy (Sinch) | VoIP |
| 737-246 | Airespring | Landline |
| 737-247 | Onvoy (Sinch) | VoIP |
| 737-248 | Verizon Business (MCImetro) | Landline |
| 737-249 | Ip Global Networks | Landline |
| 737-250 | Onvoy (Sinch) | VoIP |
| 737-251 | Peerless Network | VoIP |
| 737-252 | Peerless Network | VoIP |
| 737-253 | Vonage | VoIP |
| 737-254 | AT&T (Teleport Communications) | Landline |
| 737-255 | Exiant Communications | Landline |
| 737-256 | Verizon Wireless | Wireless |
| 737-257 | Bandwidth.com | VoIP |
| 737-258 | AT&T (Teleport Communications) | Landline |
| 737-259 | Lumen (Level 3) | VoIP |
| 737-260 | Onvoy (Sinch) | VoIP |
| 737-261 | AT&T (Teleport Communications) | Landline |
| 737-262 | Verizon Wireless | Wireless |
| 737-263 | AT&T Mobility | Wireless |
| 737-264 | Metro by T-Mobile (MetroPCS) | Wireless |
| 737-265 | AT&T Mobility | Wireless |
| 737-266 | Lumen (Level 3) | VoIP |
| 737-267 | AT&T Mobility | Wireless |
| 737-268 | Verizon Wireless | Wireless |
| 737-269 | AT&T (Teleport Communications) | Landline |
| 737-270 | Nuso | Landline |
| 737-271 | Onvoy (Sinch) | VoIP |
| 737-272 | AT&T (Teleport Communications) | Landline |
| 737-273 | Onvoy (Sinch) | VoIP |
| 737-274 | T-Mobile | Wireless |
| 737-275 | Bandwidth.com | VoIP |
| 737-276 | AT&T Mobility | Wireless |
| 737-277 | Onvoy (Sinch) | VoIP |
| 737-278 | Verizon Wireless | Wireless |
| 737-279 | Verizon Wireless | Wireless |
| 737-280 | AT&T Mobility | Wireless |
| 737-281 | Ip Horizon | Landline |
| 737-282 | Onvoy (Sinch) | VoIP |
| 737-283 | Onvoy (Sinch) | VoIP |
| 737-284 | Onvoy (Sinch) | VoIP |
| 737-285 | AT&T Mobility | Wireless |
| 737-286 | Commio | Landline |
| 737-287 | T-Mobile | Wireless |
| 737-288 | FracTEL | Landline |
| 737-289 | AT&T (Teleport Communications) | Landline |
| 737-290 | Bandwidth.com | VoIP |
| 737-291 | AT&T Mobility | Wireless |
| 737-292 | Onvoy (Sinch) | VoIP |
| 737-293 | T-Mobile | Wireless |
| 737-294 | T-Mobile | Wireless |
| 737-295 | Onvoy (Sinch) | VoIP |
| 737-296 | T-Mobile | Wireless |
| 737-297 | T-Mobile | Wireless |
| 737-298 | T-Mobile | Wireless |
| 737-299 | Onvoy (Sinch) | VoIP |
| 737-300 | Onvoy (Sinch) | VoIP |
| 737-301 | Bandwidth.com | VoIP |
| 737-302 | Metro by T-Mobile (MetroPCS) | Wireless |
| 737-303 | Skye Telecom LLC dba Skyetel | Landline |
| 737-304 | Onvoy Spectrum (Sinch) | VoIP |
| 737-305 | AT&T Mobility | Wireless |
| 737-306 | AT&T Mobility | Wireless |
| 737-307 | Onvoy (Sinch) | VoIP |
| 737-308 | Verizon Wireless | Wireless |
| 737-309 | Callworks Corporation | Landline |
| 737-310 | Hd Carrier | Landline |
| 737-312 | Onvoy (Sinch) | VoIP |
| 737-313 | Boost Mobile | Landline |
| 737-314 | Verizon Wireless | Wireless |
| 737-315 | Boost Mobile | Landline |
| 737-316 | Onvoy (Sinch) | VoIP |
| 737-317 | Onvoy (Sinch) | VoIP |
| 737-318 | T-Mobile | Wireless |
| 737-319 | AT&T (Teleport Communications) | Landline |
| 737-320 | Windstream (Paetec) | Landline |
| 737-321 | T-Mobile | Wireless |
| 737-322 | Bandwidth.com | VoIP |
| 737-323 | T-Mobile | Wireless |
| 737-324 | T-Mobile | Wireless |
| 737-325 | Onvoy (Sinch) | VoIP |
| 737-326 | T-Mobile | Wireless |
| 737-327 | Onvoy (Sinch) | VoIP |
| 737-328 | T-Mobile | Wireless |
| 737-329 | Verizon Wireless | Wireless |
| 737-330 | AT&T Mobility | Wireless |
| 737-331 | Bandwidth.com | VoIP |
| 737-332 | Onvoy (Sinch) | VoIP |
| 737-333 | Foremost Telecommunications Corporation | Landline |
| 737-334 | Bandwidth.com | VoIP |
| 737-335 | T-Mobile | Wireless |
| 737-336 | FracTEL | Landline |
| 737-337 | Onvoy (Sinch) | VoIP |
| 737-338 | Onvoy (Sinch) | VoIP |
| 737-339 | Bandwidth.com | VoIP |
| 737-340 | T-Mobile | Wireless |
| 737-341 | T-Mobile | Wireless |
| 737-342 | T-Mobile | Wireless |
| 737-343 | Verizon Wireless | Wireless |
| 737-344 | Onvoy (Sinch) | VoIP |
| 737-345 | FracTEL | Landline |
| 737-346 | Austin Bestline Company | Landline |
| 737-347 | Csc Voice | Landline |
| 737-348 | FracTEL | Landline |
| 737-349 | Verizon Wireless | Wireless |
| 737-350 | Nuso | Landline |
| 737-351 | AT&T Mobility | Wireless |
| 737-352 | Verizon Wireless | Wireless |
| 737-353 | Terra Nova Telecom | Landline |
| 737-354 | Nuso | Landline |
| 737-355 | Bandwidth.com | VoIP |
| 737-356 | FracTEL | Landline |
| 737-357 | Onvoy Spectrum (Sinch) | VoIP |
| 737-358 | Comcast (Xfinity Voice) | VoIP |
| 737-359 | Hadlo Technologies | Landline |
| 737-360 | Boost Mobile | Landline |
| 737-361 | Onvoy (Sinch) | VoIP |
| 737-362 | AT&T Mobility | Wireless |
| 737-363 | T-Mobile | Wireless |
| 737-364 | Five9 | Landline |
| 737-365 | Vonage | VoIP |
| 737-366 | Onvoy (Sinch) | VoIP |
| 737-367 | Onvoy (Sinch) | VoIP |
| 737-368 | AT&T Mobility | Wireless |
| 737-369 | Commio | Landline |
| 737-370 | Commio | Landline |
| 737-371 | Commio | Landline |
| 737-372 | Onvoy (Sinch) | VoIP |
| 737-373 | FracTEL | Landline |
| 737-374 | Commio | Landline |
| 737-375 | Onvoy Spectrum (Sinch) | VoIP |
| 737-376 | Verizon Wireless | Wireless |
| 737-377 | FracTEL | Landline |
| 737-378 | Ton80 Communications | Landline |
| 737-379 | Onvoy (Sinch) | VoIP |
| 737-380 | Csc Voice | Landline |
| 737-381 | Onvoy (Sinch) | VoIP |
| 737-382 | AT&T Mobility | Wireless |
| 737-383 | Onvoy (Sinch) | VoIP |
| 737-384 | Boost Mobile | Landline |
| 737-385 | Onvoy (Sinch) | VoIP |
| 737-386 | FracTEL | Landline |
| 737-387 | Onvoy (Sinch) | VoIP |
| 737-388 | Onvoy (Sinch) | VoIP |
| 737-389 | Verizon Wireless | Wireless |
| 737-390 | Onvoy (Sinch) | VoIP |
| 737-391 | Onvoy (Sinch) | VoIP |
| 737-392 | Twilio | VoIP |
| 737-393 | AT&T Mobility | Wireless |
| 737-394 | Bandwidth.com | VoIP |
| 737-395 | AT&T Mobility | Wireless |
| 737-396 | Five9 | Landline |
| 737-397 | Verizon Wireless | Wireless |
| 737-398 | T-Mobile | Wireless |
| 737-399 | T-Mobile | Wireless |
| 737-400 | Onvoy (Sinch) | VoIP |
| 737-401 | AT&T (Teleport Communications) | Landline |
| 737-402 | Telnyx | Landline |
| 737-403 | Verizon Wireless | Wireless |
| 737-404 | Spectrum (TWC IP) | Landline |
| 737-405 | T-Mobile | Wireless |
| 737-406 | AT&T Mobility | Wireless |
| 737-407 | AT&T Mobility | Wireless |
| 737-408 | Verizon Wireless | Wireless |
| 737-409 | Onvoy (Sinch) | VoIP |
| 737-410 | Onvoy Spectrum (Sinch) | VoIP |
| 737-412 | AT&T Mobility | Wireless |
| 737-413 | T-Mobile | Wireless |
| 737-414 | T-Mobile | Wireless |
| 737-415 | Ip Horizon | Landline |
| 737-416 | Ip Horizon | Landline |
| 737-417 | Ip Horizon | Landline |
| 737-418 | Onvoy (Sinch) | VoIP |
| 737-419 | Verizon Wireless | Wireless |
| 737-420 | Commio | Landline |
| 737-421 | T-Mobile | Wireless |
| 737-422 | Terra Nova Telecom | Landline |
| 737-423 | Wavenation | Landline |
| 737-424 | T-Mobile | Wireless |
| 737-425 | AT&T Mobility | Wireless |
| 737-426 | T-Mobile | Wireless |
| 737-427 | Onvoy (Sinch) | VoIP |
| 737-428 | AT&T Mobility | Wireless |
| 737-429 | Verizon Wireless | Wireless |
| 737-430 | AT&T Mobility | Wireless |
| 737-431 | Verizon Wireless | Wireless |
| 737-432 | Onvoy (Sinch) | VoIP |
| 737-433 | T-Mobile | Wireless |
| 737-434 | Onvoy (Sinch) | VoIP |
| 737-435 | AT&T Mobility | Wireless |
| 737-436 | Onvoy (Sinch) | VoIP |
| 737-437 | Onvoy (Sinch) | VoIP |
| 737-438 | Ahoi | Landline |
| 737-439 | Onvoy (Sinch) | VoIP |
| 737-440 | T-Mobile | Wireless |
| 737-442 | AT&T (Teleport Communications) | Landline |
| 737-443 | Lumen (Level 3) | VoIP |
| 737-444 | Foremost Telecommunications Corporation | Landline |
| 737-448 | Metro by T-Mobile (MetroPCS) | Wireless |
| 737-450 | Onvoy (Sinch) | VoIP |
| 737-455 | T-Mobile | Wireless |
| 737-465 | FracTEL | Landline |
| 737-471 | AT&T Southwest (Southwestern Bell) | Landline |
| 737-473 | Onvoy (Sinch) | VoIP |
| 737-477 | FracTEL | Landline |
| 737-484 | Verizon Business (MCImetro) | Landline |
| 737-497 | Onvoy (Sinch) | VoIP |
| 737-500 | Onvoy (Sinch) | VoIP |
| 737-510 | Onvoy (Sinch) | VoIP |
| 737-520 | Onvoy (Sinch) | VoIP |
| 737-529 | Onvoy (Sinch) | VoIP |
| 737-530 | Onvoy (Sinch) | VoIP |
| 737-537 | Onvoy (Sinch) | VoIP |
| 737-577 | FracTEL | Landline |
| 737-587 | FracTEL | Landline |
| 737-600 | Onvoy (Sinch) | VoIP |
| 737-610 | Onvoy (Sinch) | VoIP |
| 737-615 | Onvoy (Sinch) | VoIP |
| 737-618 | T-Mobile | Wireless |
| 737-637 | Onvoy (Sinch) | VoIP |
| 737-666 | Foremost Telecommunications Corporation | Landline |
| 737-667 | FracTEL | Landline |
| 737-677 | Onvoy (Sinch) | VoIP |
| 737-678 | Ton80 Communications | Landline |
| 737-688 | FracTEL | Landline |
| 737-701 | AT&T Mobility | Wireless |
| 737-702 | Bandwidth.com | VoIP |
| 737-703 | Onvoy (Sinch) | VoIP |
| 737-704 | Grande Communications (Astound) | Landline |
| 737-707 | Skye Telecom LLC dba Skyetel | Landline |
| 737-708 | Metro by T-Mobile (MetroPCS) | Wireless |
| 737-710 | Onvoy Spectrum (Sinch) | VoIP |
| 737-717 | Onvoy (Sinch) | VoIP |
| 737-727 | Onvoy (Sinch) | VoIP |
| 737-732 | FracTEL | Landline |
| 737-733 | FracTEL | Landline |
| 737-734 | Onvoy (Sinch) | VoIP |
| 737-737 | Usfon | Landline |
| 737-738 | Onvoy (Sinch) | VoIP |
| 737-742 | Ton80 Communications | Landline |
| 737-746 | Ton80 Communications | Landline |
| 737-747 | Metro by T-Mobile (MetroPCS) | Wireless |
| 737-757 | Bandwidth.com | VoIP |
| 737-758 | FracTEL | Landline |
| 737-762 | Ton80 Communications | Landline |
| 737-766 | FracTEL | Landline |
| 737-767 | Ton80 Communications | Landline |
| 737-770 | Invoxio Incorporated | Landline |
| 737-773 | Onvoy (Sinch) | VoIP |
| 737-775 | Onvoy Spectrum (Sinch) | VoIP |
| 737-777 | Foremost Telecommunications Corporation | Landline |
| 737-781 | Verizon Wireless | Wireless |
| 737-786 | FracTEL | Landline |
| 737-787 | Hd Carrier | Landline |
| 737-788 | FracTEL | Landline |
| 737-799 | FracTEL | Landline |
| 737-800 | Onvoy (Sinch) | VoIP |
| 737-802 | Verizon Wireless | Wireless |
| 737-808 | Bandwidth.com | VoIP |
| 737-825 | Ton80 Communications | Landline |
| 737-828 | Ton80 Communications | Landline |
| 737-837 | Onvoy (Sinch) | VoIP |
| 737-842 | FracTEL | Landline |
| 737-843 | Verizon Business (MCImetro) | Landline |
| 737-864 | Ton80 Communications | Landline |
| 737-867 | Commio | Landline |
| 737-877 | FracTEL | Landline |
| 737-881 | AT&T Mobility | Wireless |
| 737-888 | Foremost Telecommunications Corporation | Landline |
| 737-895 | Twilio | VoIP |
| 737-899 | FracTEL | Landline |
| 737-900 | Terra Nova Telecom | Landline |
| 737-910 | Onvoy (Sinch) | VoIP |
| 737-931 | TPx Communications | Landline |
| 737-932 | Onvoy (Sinch) | VoIP |
| 737-937 | Onvoy (Sinch) | VoIP |
| 737-946 | FracTEL | Landline |
| 737-973 | Bandwidth.com | VoIP |
| 737-975 | Onvoy (Sinch) | VoIP |
| 737-977 | FracTEL | Landline |
| 737-980 | Invoxio Incorporated | Landline |
| 737-983 | AT&T Mobility | Wireless |
| 737-990 | Invoxio Incorporated | Landline |
| 737-999 | Foremost Telecommunications Corporation | Landline |
Line type reflects the registry assignment; ported numbers can differ. Unknown 737 number calling? ActiveArmor® screens it before you ever look it up.
Cities & Communities in and around Area Code 737
Communities the 737 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 |
|---|---|---|
| Austin | 78703, 78705, 78712 | Fiber up to 5 GIG |
| Bastrop | 78602 | Fiber up to 5 GIG |
| Bee Cave | 78738, 78736, 78733 | Fiber up to 5 GIG |
| Bertram | 78605, 78642 | Internet Air |
| Briggs | 78608 | Internet Air |
| Buda | 78610, 78652, 78640 | Fiber up to 5 GIG |
| Burnet | 78611 | Internet Air |
| Canyon Lake | 78133, 78623 | Fiber up to 5 GIG |
| Cedar Creek | 78612, 78617 | Fiber up to 5 GIG |
| Cedar Park | 78613, 78717, 78750 | Fiber up to 5 GIG |
| Copperas Cove | 76539, 76522 | Internet Air |
| Coupland | 78615 | Internet Air |
| Creedmoor | 78747, 78719, 78610 | Fiber up to 5 GIG |
| Driftwood | 78619, 78737 | Internet Air |
| Dripping Springs | 78620, 78619 | Internet Air |
| Elgin | 78621, 78615, 78653 | Fiber up to 5 GIG |
| Evant | 76525 | Internet Air |
| Georgetown | 78626, 78628, 78633 | Fiber up to 5 GIG |
| Giddings | 78942 | Check address |
| Granger | 76530, 76511, 76573 | Check address |
| Hays | 78652, 78610, 78739 | Fiber up to 5 GIG |
| Highland Haven | 78639, 78657 | Check address |
| Hutto | 78634, 78665, 78664 | Fiber up to 5 GIG |
| Jarrell | 76537, 76573 | Check address |
| Jonestown | 78645, 78641, 78726 | Fiber up to 5 GIG |
| Kempner | 76539 | Internet Air |
| Kingsland | 78639, 78609 | Internet Air |
| Kyle | 78640, 78610, 78656 | Fiber up to 5 GIG |
| Lago Vista | 78545, 78585, 78584 | Fiber up to 5 GIG |
| Lakeway | 78734, 78738, 78732 | Fiber up to 5 GIG |
| Lampasas | 76550 | Internet Air |
| Leander | 78641, 78613, 78628 | Fiber up to 5 GIG |
| Liberty Hill | 78642, 78641, 78628 | Fiber up to 5 GIG |
| Lockhart | 78644, 78656 | Fiber up to 5 GIG |
| Lometa | 76853 | Internet Air |
| Luling | 78648, 78658, 78661 | Internet Air |
| Manchaca | 78652, 78748, 78610 | Fiber up to 5 GIG |
| Manor | 78653, 78754, 78724 | Fiber up to 5 GIG |
| Marble Falls | 78654, 78657 | Internet Air |
| Martindale | 78655, 78656, 78622 | Internet Air |
| McDade | 78650, 78621 | Check address |
| Milano | 76556 | Internet Air |
| Paige | 78659 | Fiber up to 5 GIG |
| Pflugerville | 78660, 78664, 78728 | Fiber up to 5 GIG |
| Red Rock | 78662, 78616 | Internet Air |
| Rockdale | 76567 | Fiber up to 5 GIG |
| Rollingwood | 78703, 78746, 78704 | Fiber up to 5 GIG |
| Round Rock | 78664, 78665, 78681 | Fiber up to 5 GIG |
| San Marcos | 78666, 78655 | Internet Air |
| Smithville | 78957 | Internet Air |
| Sunset Valley | 78745, 78749, 78704 | Fiber up to 5 GIG |
| Taylor | 76574, 78634, 78615 | Fiber up to 5 GIG |
| The Hills | 78738, 78734, 78732 | Fiber up to 5 GIG |
| Thorndale | 76577, 76578 | Check address |
| Volente | 78645, 78726, 78732 | Fiber up to 5 GIG |
| Webberville | 78725, 78653 | Fiber up to 5 GIG |
| West Lake Hills | 78746, 78703, 78735 | Fiber up to 5 GIG |
| Wimberley | 78676, 78623 | 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.
737 Area Code Map
Area code 737 covers Austin and central Texas as the 512’s overlay: the same territory, the same cities, ten-digit dialing.
↓ Printable PDF
Open the printable 737 map (PDF) · All Texas area codes · Home internet in Austin
Counties Covered by the 737 Area Code
Counties are served in whole or in part; population is U.S. Census Bureau ACS 2023. The 737 also reaches parts of Bastrop County, Coryell County, Burnet County, Caldwell County, Milam County, Lampasas County, Llano County, Gonzales County and 1 more.
Area Code 737: More Than a Number in Austin
In Austin, the 737 is more than digits on a caller ID. It arrived in 2013, layered onto the 512 region, and it has meant Austin and central Texas ever since — 327 carrier prefixes keep its lines busy today, and an established 737 number still says you’ve been here a while.
The map tells its own story: Austin and central Texas, with 512 sharing the same streets today. Several codes, one local calling area, no long-distance between any of them — only the 737 came first.
Keeping a 737 matters here. An existing 737 number ports to a new phone, a new carrier, or a new AT&T line, and stays yours anywhere in the U.S. New lines in the area often draw 512 instead — one more reason locals hold on to theirs.
Need a new local number? Shop plans Keep your 737: bring it to AT&TInternet, wireless & stores in the 737
AT&T Home Internet in Area Code 737
AT&T home internet serves communities across area code 737, 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.
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 737? AT&T Business Internet is available at many addresses.
Moving to Area Code 737?
Set up home internet in area code 737 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 737 number from anywhere, or keep your old number when you arrive. An AT&T store nearby can handle the whole switch in one visit.
AT&T Wireless in Area Code 737
AT&T’s 5G network covers most of area code 737. ActiveArmor® spam blocking is included with every unlimited plan, your 737 number stays yours, and great cell phone deals in Austin are a tap away.
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 737 number? Ask when you activate a line: the 737 shares its territory with 512, so new lines may draw one of those codes, and porting an existing 737 number keeps it yours.
AT&T Stores in Area Code 737
Looking for cell phone stores in area code 737? These stores answer on 737 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.
All AT&T Stores with 737 Numbers
Every store below answers on a 737 number. Tap any number to call.
International Calling from Area Code 737
Calling abroad from area code 737? 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.
Top places of birth among foreign-born residents of the 737’s counties, U.S. Census Bureau ACS 2023.
Calling abroad from a 737 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.
737 Area Code Quick Facts & Dialing
How to dial a 737 number
| Scenario | Format | Example |
|---|---|---|
| Local call (within the region) | 737 + 7-digit number | (737) 555-0100 |
| Long distance (within the U.S.) | 1 + 737 + 7-digit number | 1 (737) 555-0100 |
| Calling 737 from another country | +1 737 + 7-digit number | +1 737 555 0100 |
| From a mobile phone | (737) + 7-digit number | (737) 555-0100 |
A Short History of Area Code 737
Added in 2013 to the 512 region, the 737 serves Austin and central Texas. No splits or overlays have divided its territory since.
In service since 2013. Today the 737’s territory is shared with overlay code 512, so ten-digit dialing is required.
Nearby & Related Area Codes
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