What area code is 512?
Here's everything about it.
Instant lookup for the 512 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.
512 at a glance
Summary
Cities & regions served by 512
Austin8 communities on record for 512.
Where 512 sits on the map
Overlay: 737Coverage area
About the 512 region
512 covers Austin in Texas, including Round Rock, Cedar Park, Georgetown, Pflugerville and San Marcos. The code has been in service since 1947 and is one of the original North American area codes.
As the Austin region grew, 512 ran low on available numbers, so 737 was added as an overlay code over the same geographic area. Both codes are local to each other and 10-digit dialing applies throughout.
1992: split to create 210; 1999: split to create 361; 2013: overlaid by 737.
Who called me from 512?
Community reports- Caller ID is trivially spoofed: an incoming call that displays 512 does not prove the caller is really in the 512 region or even in the United States.
- Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
- Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
- When a 512 call pressures you to act immediately, hang up and contact the organization directly through its official number.
Be the first to add a community report for a 512 number below.
Frequently asked questions
FAQWhat area code is 512?+–
512 is the original 1947 area code for central Texas, anchored by Austin. Once covering a much larger swath of the state, it was pared back by the 210 and 361 splits (1992 and 1999) and now shares its territory with the 737 overlay, added in 2013.
Where is area code 512 located?+–
It covers Travis, Williamson, Hays, including Round Rock, Cedar Park, Georgetown, Pflugerville and San Marcos in Texas.
What cities are in area code 512?+–
Major communities on record include Round Rock, Cedar Park, Georgetown, Pflugerville and San Marcos, among others. The code's territory spans the Austin region of Texas.
What time zone is 512?+–
512 observes Central (CT), which is UTC−6 / −5 DST and follows daylight saving time.
When did area code 512 start?+–
512 entered service in 1947 as one of the original 1947 North American area codes. Its history: 1992: split to create 210; 1999: split to create 361; 2013: overlaid by 737.
Why do calls to 512 require 10-digit dialing?+–
512 shares its territory with overlay code 737. Because both codes serve the same geographic area, the phone network needs all 10 digits to route a call, and calls between the codes are still local.
Is 512 a scam area code?+–
Scam and robocall traffic can use any North American code, 512 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 512 number, and report anything suspicious.
Can I get a 512 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 512 number regardless of where you physically live.