Area Code Box

Area code 512

Where is area code 512?

Austin, Georgetown and San Marcos, Texas

Local time: … (Central Time)

StateTexas
CountryUnited States
Main citiesAustin, Georgetown and San Marcos
Time zoneCentral Time
Overlay area codes737
In service since1947
Assigned prefixes785
Dialing format(512) XXX-XXXX · +1 512 XXX XXXX from abroad

Look up a 512 number

Enter a 3-digit area code or a full 10-digit number.

Cities and towns in area code 512

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 512.

Phone companies in area code 512

The carriers that hold the most 512 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

PrefixesCarrier
273Southwestern Bell (AT&T)
98New Cingular Wireless PCS (AT&T)
70T-Mobile USA
49Verizon Wireless
45Level 3 of Telecom of Texas
37Frontier Comm of Texas
26Onvoy
21Level 3 Communications

All 785 prefixes in area code 512

Pick the 3 digits after the area code to see that prefix’s city and carrier.

Area codes that overlay 512

Questions

Where is area code 512?
Area code 512 is in Texas. It serves Austin, Georgetown, San Marcos, Bastrop and Leander and 36 other cities and towns.
What time zone is area code 512 in?
Area code 512 uses Central Time.
What area codes overlay 512?
737 serves the same area as 512. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.
Is a call from area code 512 a scam?
The area code alone doesn’t tell you. Most calls from 512 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 512 number, let it go to voicemail.
When did area code 512 start?
512 went into service in 1947.
Can a 512 number be outside Texas?
Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 512 caller can be anywhere.

Other area codes in Texas

Area codeMain cities
210San Antonio
214Dallas, Grand Prairie and McKinney
254Waco, Killeen and Temple
281Houston, Spring and Sugar Land
325Abilene, San Angelo and Brownwood
346Houston, Spring and Cypress
361Corpus Christi, Victoria and Alice
409Beaumont, Galveston and Texas City
430Longview, Greenville and Tyler
432Odessa, Midland and Big Spring
469Grand Prairie, Dallas and Plano
621Houston, Spring and Katy
682Arlington, Fort Worth and Weatherford
713Houston, Pasadena and Spring
726San Antonio
806Lubbock, Amarillo and Plainview
817Fort Worth, Arlington and Hurst
830New Braunfels, Del Rio and Seguin
832Houston, Spring and Richmond
903Tyler, Longview and Texarkana
915El Paso, Clint and Canutillo
936Conroe, Lufkin and Huntsville
940Wichita Falls, Denton and Decatur
945Grand Prairie, Dallas and Frisco
956Laredo, Brownsville and McAllen
972Dallas, Grand Prairie and Irving
979Bryan, Angleton and Freeport