Area code 737 covers Austin and surrounding areas in Texas. It was activated in 2013 as an overlay of area code 512. Today it shares its territory with overlay code 512. For the full picture, see all Texas area codes.
| State | Texas |
|---|---|
| Primary city | Austin |
| Cities also served | Austin, Georgetown, San Marcos, Cedar Park, Leander, Kyle, Bastrop, Round Rock |
| Time zone | Central (UTC-6 / UTC-5 DST) |
| Year established | July 1, 2013 |
| Original 1947 NPA? | No |
| Parent code | 512 |
| Overlay codes | 512 |
| Currently in use? | Yes, actively assigned |
| Ten-digit dialing required? | Yes |
Cities Served by Area Code 737
Area code 737 serves Austin metropolitan area and surrounding Central Texas counties, including Travis, Williamson, Hays, Bastrop, Burnet, Caldwell, and Milam counties, including the following cities and communities:
- Austin
- Georgetown
- San Marcos
- Cedar Park
- Leander
- Kyle
- Bastrop
- Round Rock
Nearby area codes covering the same broader region include: 512.
How to Get a 737 Phone Number
There are three ways to get a phone number with the 737 area code, each suited to a different need:
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Browse 737 Numbers →- Buy from a premium-number specialist. Companies that hold curated inventories of specific area codes can sell you a 737 number directly, often with a one-time fee and ownership transferred to you (no recurring carrier fees). This is the option for picking a specific memorable number, or for getting an area code that most carriers won’t let you request. Browse our 737 inventory.
- Sign up with a VoIP carrier. Voice-over-IP services (such as Google Voice, OpenPhone, Grasshopper, and many others) can typically provision a 737 number on request, especially for active overlay codes. You won’t usually get to pick the specific number, but you’ll get a working line in the area code. This is the cheapest option for anyone who doesn’t need a particular number.
- Port an existing 737 number. If you already have a 737 phone number with another carrier, you can transfer it (port it) to a new service provider while keeping the number. This works for landlines, cell phones, and VoIP services, though landlines outside of Texas sometimes can’t accept inbound ports of 737 numbers due to 911 routing rules.
Looking for a 737 number? 212areacode.com offers premium 737 numbers for Austin, Texas — choose your number, port it to any carrier in 3–5 business days, and pay a one-time fee with no monthly charges. Browse available 737 numbers →
Frequently Asked Questions
Is the 737 area code still in use?
Yes. 737 is actively assigned to new phone lines in Austin metropolitan area and surrounding Central Texas counties, including Travis, Williamson, Hays, Bastrop, Burnet, Caldwell, and Milam counties.
What is the difference between 737 and 512?
Today they share the same geographic territory in Texas. New phone lines in the area may be assigned either code. The two codes work identically for calling, billing, and service.
What is the parent area code of 737?
Area code 737 is an overlay of 512. Both codes serve the same region of Texas.
Can I get a 737 number if I don't live in Texas?
Yes. Phone numbers are no longer tied to a physical address. With VoIP service or a number broker, you can hold a 737 number from anywhere in the world. The number routes to whatever device or carrier you specify.
Is 737 a scam area code?
No. 737 is a legitimate, active area code for Austin metropolitan area and surrounding Central Texas counties, including Travis, Williamson, Hays, Bastrop, Burnet, Caldwell, and Milam counties. Like any area code, scammers occasionally spoof 737 caller IDs, but the code itself is heavily used by real Texas businesses, government offices, and residents.
What cities does the 737 area code serve?
Area code 737 covers Austin and its surrounding suburbs, including Georgetown, San Marcos, Cedar Park, Leander, Kyle, Bastrop, and Round Rock, spanning counties such as Travis, Williamson, Hays, and Bastrop.
Is 737 the same area as 512?
Yes. Area code 737 is a full overlay of 512, meaning both codes serve the identical geographic territory in and around Austin, Texas. New numbers issued in the region may carry either a 512 or 737 prefix.
Do I need to dial 10 digits for calls within the 737 area code?
Yes. Because 737 and 512 share the same territory as an overlay pair, all local calls require 10-digit dialing — the 3-digit area code plus the 7-digit number.
When did area code 737 go into service?
Area code 737 was put into service on July 1, 2013, by NANPA, to relieve number exhaustion pressure on the existing 512 area code as Austin’s population and demand for phone numbers grew rapidly.
