Cities in area code 737

35 localities · NANPA data, current as of July 28, 2026.

Which places use area code 737? 35 rate centers in Texas, the biggest being Austin, Georgetown, Bastrop. Data below is NANPA's official prefix-to-rate-center mapping.

Ranked by active prefixes, the code's territory runs through Austin, Georgetown, Bastrop, San Marcos, Kyle, Leander, Elgin and Taylor, and 26 smaller communities down to single-prefix localities.

25 of the localities fall within FCC top-100 metropolitan statistical areas; the rest are smaller communities.

35 of these localities are also reachable through other area codes — overlay territory where the same place answers to several codes.

All of the code's territory keeps Central time.

Remember that people keep numbers when they relocate, so a 737 number is a where-it-was-issued fact, not a where-they-are fact.

FAQ

What is the biggest city in area code 737?

Austin holds the most active prefixes (147), making it the code's largest numbering locality.

How many places does 737 cover?

35 rate centers in Texas hold active 737 prefixes, from Austin down to communities with a single prefix.

Does a 737 number guarantee the caller lives in one of these places?

No — the tables show where number blocks were issued. Porting and VoIP let people keep or acquire numbers anywhere.