737 Area Code: Austin, Texas
From the North American Numbering Plan Administrator (NANPA), checked October 13, 2026.
737 is an Austin, Texas area code. It serves the same places as 512, which covers the greater Austin area.
Local 737 numbers available
30 or more
Twilio's number search found 30 or more local 737 numbers that can take calls, checked October 15, 2026. CallFlux buys its tracking numbers through Twilio. We run this search at most once a day, and one search lists at most 30 numbers, so 30 means 30 or more.
737 area code at a glance
Places the 737 area code covers
“The 512 NPA generally covers the greater Austin area and principally in the counties of Bastrop, Burnet, Caldwell, Hays, Lampasas, Milan, Travis and Williamson”
Rate centers NANPA lists for 737
NANPA's rate center report lists 35 rate centers for 737, as of October 13, 2026.[15]
- Adamsville
- Austin
- Bastrop
- Bertram
- Briggs
- Buchanan Dam
- Buda
- Burnet
- Coupland
- Dale/Lytton Springs
- Dripping Springs
- Elgin
- Fentress
- Georgetown
- Granger
- Hutto
- Jarrell
- Kempner
- Kyle
- Lampasas
- Leander
- Liberty Hill
- Lockhart
- Lometa
- Martindale
- McDade
- Milano
- Paige
- Rockdale
- San Marcos
- San Gabriel
- Smithville
- Taylor
- Thorndale Thrall
- Wimberley
Area codes that share the 737 area
In an overlay, more than one area code serves the same area. NANPA lists 737 in the 512/737 overlay. So 512 serves the same area as 737.[3]
“The new 737 NPA will serve the same geographic area currently served by the existing 512 NPA.”
Get a local 737 tracking number
CallFlux tracking numbers are picked by area code. In the CallFlux dashboard you type 737, search the numbers available in it and choose one. Calls to that number forward to the phone you set, and you can record them, assign the number to a campaign and swap it onto your website, so each call shows which ad or page it came from.
A local tracking number is $1.15 a month, on top of a CallFlux plan.
Frequently asked questions
Where is the 737 area code?
737 is an Austin, Texas area code. It serves the same places as 512, which covers the greater Austin area.
What area codes share the 737 area?
NANPA lists 737 in the 512/737 overlay. So 512 serves the same area as 737.
What time zone is the 737 area code in?
NANPA lists Central as the predominant time zone for 737.
How do you dial a local call in the 737 area code?
NANPA lists 10 digits (the area code and the number) as the predominant way to dial a local call within 737, and 1 + 10 digits for toll calls.
When did the 737 area code start?
NANPA lists July 1, 2013 as the date 737 was placed in service.
Can I get a local 737 phone number for my business?
Yes. CallFlux tracking numbers are picked by area code: type 737 in the CallFlux dashboard, search the numbers available and choose one. Our latest search, on October 15, 2026, found 30 or more. A local tracking number is $1.15 a month, on top of a CallFlux plan.
Sources
Every fact on this page, the words it rests on and the date it was checked. NANPA writes NPA for an area code.
[1] NANPA lists 737 as an area code in Texas.
“LOCATION: TX”
NANPA NPA Database (file dated October 13, 2026) · checked October 13, 2026
[2] NANPA lists July 1, 2013 as the date 737 was placed in service.
“IN_SERVICE_DT: 01-Jul-2013”
NANPA NPA Database (file dated October 13, 2026) · checked October 13, 2026
[3] NANPA lists 737 as part of the 512/737 overlay.
“OVERLAY_COMPLEX: 512/737”
NANPA NPA Database (file dated October 13, 2026) · checked October 13, 2026
[4] NANPA lists 512 as the parent area code of 737.
“PARENT_NPA_ID: 512”
NANPA NPA Database (file dated October 13, 2026) · checked October 13, 2026
[5] NANPA lists Central as the predominant time zone of 737.
“TIME_ZONE: C”
NANPA NPA Database (file dated October 13, 2026) · checked October 13, 2026
[6] NANPA's TIME_ZONE field gives a code's predominant time zone or zones.
“Predominant time zone(s) for NPA”
NANPA NPA Database field definitions · checked October 13, 2026
[7] In NANPA's field definitions, C stands for Central.
“C-Central”
NANPA NPA Database field definitions · checked October 13, 2026
[8] NANPA lists 10 digits as the predominant way to dial a local call within 737.
“HOME_NPA_LOCAL_CALLS: 10D”
NANPA NPA Database (file dated October 13, 2026) · checked October 13, 2026
[9] NANPA's HOME_NPA_LOCAL_CALLS field gives the predominant dialing pattern for local calls.
“Predominant dialing pattern on Home NPA Local Calls”
NANPA NPA Database field definitions · checked October 13, 2026
[10] NANPA lists 1 + 10 digits as the predominant way to dial a toll call within 737.
“HOME_NPA_TOLL_CALLS: 1+10D”
NANPA NPA Database (file dated October 13, 2026) · checked October 13, 2026
[11] NANPA's HOME_NPA_TOLL_CALLS field gives the predominant dialing pattern for toll calls.
“Predominant dialing pattern on Home NPA Toll Calls”
NANPA NPA Database field definitions · checked October 13, 2026
[12] In NANPA's field definitions, 1+10D stands for 1 + 10 digits.
“1+10D - one plus ten digits”
NANPA NPA Database field definitions · checked October 13, 2026
[13] In NANPA's field definitions, 10D stands for 10 digits.
“10D - ten digits”
NANPA NPA Database field definitions · checked October 13, 2026
[14] NANPA's rate center report puts 25 of 737's 35 rate centers in the Austin-Round Rock-San Marcos, TX Metropolitan Statistical Area.
“Austin-Round Rock-San Marcos, TX Metropolitan Statistical Area”
NANPA NPA Rate Center Report (created October 13, 2026) · data · checked October 13, 2026
[15] NANPA's rate center report lists 35 rate centers for 737.
“ADAMSVILLE; AUSTIN; BASTROP; BERTRAM; BRIGGS; BUCHANAN DAM; BUDA; BURNET; COUPLAND; DALE/LYTTON SPRINGS; DRIPPING SPRINGS; ELGIN; FENTRESS; GEORGETOWN; GRANGER; HUTTO; JARRELL; KEMPNER; KYLE; LAMPASAS; LEANDER”
NANPA NPA Rate Center Report (created October 13, 2026) · data · checked October 13, 2026
[16] NANPA describes the 512 area as greater Austin and eight counties.
“The 512 NPA generally covers the greater Austin area and principally in the counties of Bastrop, Burnet, Caldwell, Hays, Lampasas, Milan, Travis and Williamson”
NANPA Planning Letter PL-438 (August 1, 2012) · checked October 13, 2026
[17] 737 serves the same area as 512.
“The new 737 NPA will serve the same geographic area currently served by the existing 512 NPA.”
NANPA Planning Letter PL-438 (August 1, 2012) · checked October 13, 2026
[18] NANPA's glossary uses NPA, Numbering Plan Area, for an area code.
“Numbering Plan Area (Area Code)”
NANPA glossary · checked October 13, 2026