Home › Texas › 512

512 Area Code

Area code 512 serves Austin, Round Rock, Georgetown, Leander, Cedar Park and nearby communities in Texas. It has been in service since January 1, 1947.

StateTexas
Time zoneCentral
Local time now…
Prefixes in use783
Overlay with737
Projected to run out2044
AustinRound RockGeorgetownLeanderCedar ParkSan MarcosKylePflugervilleHuttoManorBrushy CreekLakewaySteiner RanchTaylorLockhartBudaWells BranchBastropElginLiberty HillHornsby BendDripping SpringsLago VistaSonterraBee CaveLampasasCamp SwiftBelterraBurnetJarrellShady HollowRockdaleWyldwoodAustinRound RockGeorgetownSan MarcosKylePflugerville
Cities and towns served by area code 512

Who issues 512 numbers

Mobile 28%VoIP and cable 19%Landline 52%

Share of the 783 prefixes (the three digits after 512) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
AT&T (Southwestern Bell)271
AT&T Mobility98
T-Mobile70
Lumen (Level 3)66
Verizon Wireless49
Frontier37
Onvoy (Sinch)27
Bandwidth17

Cities and towns in area code 512

CityPopulationOther area codes
Austin1,002,632737
Round Rock141,282737
Georgetown106,907737
Leander91,132737
Cedar Park79,032737
San Marcos77,830737
Kyle69,917737
Pflugerville68,316737
Hutto46,048737
Manor23,070737
Brushy Creek20,953737
Lakeway19,027737
Steiner Ranch18,683737
Taylor18,402737
Lockhart18,159737
Buda16,166737
Wells Branch14,156737
Bastrop13,383737
Elgin13,327737
Liberty Hill13,317737
Hornsby Bend12,021737
Dripping Springs11,167737
Lago Vista10,498737
Sonterra8,576737
Bee Cave8,464737
Lampasas7,988737
Camp Swift7,505737
Belterra7,190737
Burnet6,939737
Jarrell5,870737
Shady Hollow5,821737
Rockdale5,688737
Wyldwood5,436737

Got a call from 512?

A 512 number was originally issued in Texas, but that does not prove the caller is there. 19% of 512 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 783 prefixes in area code 512

Format: (512) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 512

Where is area code 512?
Area code 512 is in Texas. It covers Austin, Round Rock, Georgetown, Leander, Cedar Park, San Marcos and 27 more cities and towns.
What time zone is area code 512?
Area code 512 is in the Central time zone.
Is 512 a toll-free number?
No. 512 is a geographic area code in Texas. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Why does 512 share its area with 737?
512 and 737 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.
Will area code 512 run out of numbers?
NANPA's latest forecast projects the 512/737 overlay to exhaust in the first quarter of 2044. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in Texas