737 area code: location, overlays and numbers
The US telephone area code 737 serves Austin, Texas and has been in service since 2013, sharing an overlay with 512.
- Location
- Austin, Texas
- Service start
- 2013
- The time zone
- Central time
- Overlay
- 512
- Calls within the area
- 10-digit dialing
- The rate centres
- 35
- Expected exhaust
- 2044
- Code for the country
- +1 (United States)
Source: NANPA public reports, file of 11/01/2026: the area code report and the rate-centre report. Exhaust year: the NANPA projections 2026-1 (April 2026). We are not an official NANPA site.
Get hold of a 737 number
You can get a 737 number in two ways. At sign-up, a provider assigns a new number from those it holds for the code, and the number comes with its plan. Sellers offer numbers they already own, often with a pattern, at a one-time price. After that, you transfer the number to a provider.
Providers ranked by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers listing local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
Some sellers and providers may pay us a referral fee. The order stays the same, and it is based on first-year cost. How we earn
Places in the 737 area code
For 737, NANPA lists 35 rate centres. Every one of them is a local calling area where numbers get assigned:
Adamsville, Bastrop, Briggs, Buda, Coupland, Dripping Springs, Fentress, Granger, Jarrell, Kyle, Leander, Lockhart, Martindale, Milano, Rockdale, San Gabriel, Taylor, Wimberley, Austin, Bertram, Buchanan Dam, Burnet, Dale/lytton Springs, Elgin, Georgetown, Hutto, Kempner, Lampasas, Liberty Hill, Lometa, Mcdade, Paige, San Marcos, Smithville, Thorndale Thrall.
Other related area codes
512 covers the same area and draws from the same pool of numbers. Any of these codes can supply a new number in this area, so ask for whichever one you want.
Texas also uses 214, 713, 915, 817, 806, 409, 903, 210, 972, 281, 254, 940, 830, 956, 832, 361, 469, 936, 979, 682, 430, 325, 432, 346, 726, 945, plus 621.
City guides: Austin area code guide.
737 area code questions
What area does 737 cover?
The 737 code rings in Austin, Texas and in the Austin-Round Rock-San Marcos, TX area.
Which country code does a 737 number use?
+1. The North American Numbering Plan covers 737, so calls from abroad use +1 737 plus the 7-digit number.
What time is it in the 737 area code?
The 737 area uses Central time.
Who calls using a 737 number?
Homes, mobiles and local businesses hold numbers in this code, and so do people who fake a local number. The 737 number shown on your screen points to where it was assigned, not to the caller.