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737 Area Code

Area code 737 serves Austin, Round Rock, Georgetown, Leander, Cedar Park and nearby communities in Texas. It has been in service since July 1, 2013, when it was split from 512.

StateTexas
Time zoneCentral
Local time now…
Prefixes in use332
Overlay with512
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 737

Who issues 737 numbers

Mobile 27%VoIP and cable 45%Landline 27%

Share of the 332 prefixes (the three digits after 737) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
Onvoy (Sinch)87
T-Mobile33
AT&T Mobility29
Verizon Wireless28
Fractel26
Bandwidth21
AT&T (Teleport)14
Ton80 Communications9

Cities and towns in area code 737

CityPopulationOther area codes
Austin1,002,632512
Round Rock141,282512
Georgetown106,907512
Leander91,132512
Cedar Park79,032512
San Marcos77,830512
Kyle69,917512
Pflugerville68,316512
Hutto46,048512
Manor23,070512
Brushy Creek20,953512
Lakeway19,027512
Steiner Ranch18,683512
Taylor18,402512
Lockhart18,159512
Buda16,166512
Wells Branch14,156512
Bastrop13,383512
Elgin13,327512
Liberty Hill13,317512
Hornsby Bend12,021512
Dripping Springs11,167512
Lago Vista10,498512
Sonterra8,576512
Bee Cave8,464512
Lampasas7,988512
Camp Swift7,505512
Belterra7,190512
Burnet6,939512
Jarrell5,870512
Shady Hollow5,821512
Rockdale5,688512
Wyldwood5,436512

Got a call from 737?

A 737 number was originally issued in Texas, but that does not prove the caller is there. 45% of 737 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 332 prefixes in area code 737

Format: (737) 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 737

Where is area code 737?
Area code 737 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 737?
Area code 737 is in the Central time zone.
Is 737 a toll-free number?
No. 737 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 737 share its area with 512?
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 737 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