512
Covers Austin, Texas
One of the original area codes of 1947
Overlay with 737
City facts
Austin area codes
Area codes for Austin, Texas: history, overlays and how to dial.
512737
Austin uses area codes 512 and 737. Because more than one area code serves the same area, local calls need all ten digits.
About these area codes
737
Covers Austin, Texas
In service since 2013
Overlay with 512
How to call a number in Austin
Inside the US
1 (512) 555-0123Dial 1, the area code, then the seven-digit number.Local call
(512) 555-0123Overlay area: always include the area code.From outside the US
+1 512 555 0123Use your country's exit code or +, then 1 for the US.Austin is on Central Time (CT); check the time before calling from another zone.
Other cities that share these codes
Nearby area codes
| Area code | Used in | Distance |
|---|---|---|
| 830 | New Braunfels | 45 mi |
| 254 | Killeen | 56 mi |
Austin quick facts
Austin was settled in 1835 and incorporated on December 27, 1839. It is named for Stephen F. Austin.
Settled1835
Incorporated1839December 27, 1839
CountiesTravis, Hays and Williamson countiesTexas
Area codes512, 737Population967,862Census ACS estimateZIP codes3778701, 78702, 78703…Elevation607 ft185 m
Time zoneCentral TimeCT
Dates, namesake and elevation from Wikipedia: Austin, Texas and Wikidata (checked 2026-11-08); population and ZIP codes from the U.S. Census Bureau.
Questions
What area code is Austin?
Austin uses area codes 512 and 737. Because more than one area code serves the same area, local calls need all ten digits.
When did area code 512 start?
Area code 512 is one of the original North American area codes of 1947.
When did area code 737 start?
Area code 737 dates from 2013.
Do I need to dial the area code for local calls in Austin?
Yes. 512 and 737 share the same area as an overlay, so every local call needs the area code plus the seven-digit number (ten digits).
What time zone is area code 512 in?
Austin is on Central Time (CT).
What other cities use area code 512?
Other cities in this network that share 512 and 737 include Cedar Park, Georgetown.
Sources: Area codes 512 and 737, Area codes 512 and 737 (Wikipedia) and Wikidata, checked 2026-11-08. Numbering plans change; the North American Numbering Plan Administrator is the official record.