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AREA CODE · TEXAS

Area code 512

Area code 512 covers Austin, Texas. Map, time zone, overlays, carriers, the full list of prefixes and how to dial it.

State: Texas Major City: Austin Central Time (CT) Overlay: 512/737
01 / WHERE IT IS

Where is area code 512?

Area code 512 is assigned to Austin and the surrounding region in Texas. Calls to numbers that start with 512 are routed to this area.

Area code 512 shares its territory with 737. Because it is an overlay, local calls require dialing all 10 digits.

Counties covered

Travis CountyWilliamson CountyHays CountyBastrop CountyCaldwell County

Line types

  • Mobile 29.12%
  • Landline 70.88%
02 / MAP

Area code 512 on the map

The shaded area joins the code’s numbering centers; the marker shows its main city.

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© OpenStreetMap contributors

03 / LOCAL TIME

Current time in Austin

This area code is in the Central Time (CT) time zone.

Local timeAustin, TX--:--:--

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America/ChicagoLive
04 / HOW TO DIAL

How to call Austin

WITHIN THE US512 XXX XXXX

Always 10 digits — landline, mobile or VoIP. Local, long distance or a different state: the format is always the same. You do not need to dial the 1 first.

FROM ABROAD+1 512 XXX XXXX

Exit codes: 00 Europe/Mexico · 011 Canada · 010 Japan · + universal

WHATSAPP / IMESSAGE+1 512 XXX XXXX

Always save the number in international format so messaging apps recognize it correctly:

Call typeTraditional landlineMobile / VoIP
Local (same area code)10 digits10 digits
US long distance1 + 10 digits10 digits
Emergency911911
🌐Universal+1 512 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 512 555 0123
🇦🇺Australia0011 1 512 555 0123
🇯🇵Japan010 1 512 555 0123
HAVE THE FULL NUMBER?

Learn more about that number.

Check the line type and the carrier the number block was originally assigned to.

10 digits to see the carrier and line type of the number

05 / CARRIERS

Carriers in area code 512

Share of the number blocks by carrier and line type.

Landline

AT&T
53%
Lumen Technologies
13%
Frontier Communications
7%
Metro by T-Mobile
5%
Sinch
5%
Others
18%

Mobile

AT&T Mobility
43%
T-MOBILE USA
25%
Verizon Wireless
21%
USA Mobility
8%
WORLDCALL INTERCONNECT
2%
Others
1%

Carrier shown is the original assignment of each number block and may differ today because of number portability.

06 / PREFIXES

Complete list of prefixes for area code 512

783 number blocks (NXX) assigned in this area code.

PrefixTypeCityCarrier
(512) 200 Mobile Austin T-MOBILE USAT-MOBILE USA, INC.
(512) 201 Mobile Austin Verizon WirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
(512) 202 Mobile Austin Verizon WirelessCELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX
(512) 203 Mobile Austin T-MOBILE USAT-MOBILE USA, INC.
(512) 204 Mobile Austin USA MobilityAMERICAN MESSAGING SERVICES, LLC
(512) 205 Mobile Austin USA MobilityUSA MOBILITY WIRELESS, INC.
(512) 206 Landline Austin AT&TSOUTHWESTERN BELL
(512) 207 Landline Austin AT&TSOUTHWESTERN BELL
(512) 208 Mobile Austin USA MobilityAMERICAN MESSAGING SERVICES, LLC
(512) 209 Mobile Austin USA MobilityAMERICAN MESSAGING SERVICES, LLC

Showing 10 of 783 prefixes

07 / FAQ

Frequently asked questions about area code 512

Where is area code 512 used?
Area code 512 serves Austin and the surrounding area in Texas, including Travis County, Williamson County, Hays County, Bastrop County, Caldwell County.
What city is area code 512 from?
The main city of area code 512 is Austin, TX.
What time zone is area code 512 in?
Area code 512 is in the Central Time (CT) time zone (America/Chicago).
Is 512 an overlay area code?
Yes. It shares its territory with 737. In an overlay, every call requires dialing all 10 digits.
How do I call a number with area code 512 from the United States?
Dial the 10 digits: 512 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 512 number from another country?
Dial your country's exit code (or +), then 1, then 512 and the seven-digit number. From a mobile you can use +1 512 XXX XXXX.
Which carriers use area code 512?
Most landline blocks belong to AT&T and most mobile blocks to AT&T Mobility. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 512 for landlines, mobiles or both?
Both. About 70.88% of the number blocks are landline, 29.12% mobile.
How do I save a 512 number in WhatsApp or my phone?
Save it in international format: +1 512 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 512?
The area code only shows the region a number was assigned to; it does not tell you who is calling. Scammers can fake any area code, so do not share personal or banking information with unknown callers, and let unknown numbers go to voicemail.
KEEP EXPLORING

Nearby area codes

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Other area codes in Texas

210 · San Antonio214 · Dallas254 · Waco281 · Houston325 · Abilene346 · Houston361 · Corpus Christi409 · Beaumont430 · Longview432 · Terminal469 · Dallas682 · Arlington713 · Houston726 · San Antonio737 · Austin806 · Lubbock817 · Fort Worth830 · New Braunfels832 · Houston903 · Tyler915 · El Paso936 · Conroe940 · Wichita Falls945 · Grand Prairie956 · Laredo972 · Dallas979 · Bryan-College Station

View all Texas area codes →