Area code 737 covers Austin and surrounding communities in Texas.
Updated 8 October 2026
Area code 737 is in Texas, shown here with Austin marked.
Now in Austin
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Typical business hours, 9 to 5 Monday to Friday.
Typical business hours, 9 to 5 Monday to Friday, shown as the blue arc. A guide to when a real Austin office is likely to answer. It says nothing about who called you.
Source: North American Numbering Plan Administrator, retrieved 8 October 2026.
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Is area code 737 a scam?
No. Area code 737 is a legitimate area code serving Austin since 2013. Scammers spoof caller ID to display 737 numbers, which is why complaints exist against a code that is itself genuine.
Neighbour spoofing is the reason a local-looking number is not a guarantee. A caller anywhere in the world can display a 737 number, and the number they display may belong to a real business in Austin that has nothing to do with the call.
The callerAnywhere in the worldSets the caller ID their equipment sends.
What is displayed(737) 237-8578May belong to a real Austin business.
Your phoneLooks localA nearby code and prefix make you likelier to answer.
300Area code 737 had 300 different numbers reported for spam calls in the 30 days to 8 October 2026.
257thArea code 737 ranks 257th of 331 US geographic area codes by spam complaint volume.
64%Of the 322 complaints about area code 737 in the 30 days to 8 October 2026, 64% were reported as a recorded message or robocall.
23%The most reported subject on area code 737 is reducing your debt (credit cards, mortgage, student loans), appearing in 23% of its complaints in the 30 days to 8 October 2026.
Why am I getting text messages from area code 737?
Texts from 737 numbers follow the same pattern as calls — mostly local businesses and services. Treat any text asking for payment or credentials as suspect regardless of the code.
The common patterns are a wrong-number opener that turns into conversation, an unsolicited job offer, and a crypto or investment tip. Do not reply, do not follow the link, and forward the message to 7726 (SPAM) to report it to your carrier.
Pattern 1Wrong-number openerTurns into conversation.
Pattern 2Unsolicited job offerDo not reply, do not follow the link.
Pattern 3Crypto or investment tipTreat any payment ask as suspect.
Report it7726Forward the message. It spells SPAM on a keypad.
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Area codes that overlay 737
Area code 737 shares its geographic footprint with one other code: 512. Overlays are laid over an existing area rather than splitting it, so all local calls require the full ten-digit number.
Area code 737 arrived in 2013 as an overlay on 512, and it now rings the same territory: Austin and its fast-growing suburbs. The city is the capital of Texas, so state government remains a large and stable employer, but the private economy is dominated by technology. Dell was founded here, Apple runs one of its largest campuses outside Cupertino in the city's north, Tesla builds vehicles at its factory east of the airport, and Samsung fabricates chips in the metro. The University of Texas at Austin supplies the talent pipeline and anchors a research economy alongside the startups it spins out.
Who lives in the 737 region
Austin's population reached 979,539 in 2024, with a median age of 34.7 and a median household income of $93,658, per DataUSA. Roughly 18.6% of residents were born outside the United States, and the city has absorbed years of inbound migration from California and other states. Housing costs reflect that pull. The median property value stood at $555,300 in 2024.
What a 737 number signals to a caller
Because 737 is the newer overlay, callers describe it as reading slightly less established than a 512 number, though the distinction is fading as new lines default to it. Ten-digit dialing is mandatory across the overlay. Business culture in Austin is generally informal, and callers report that a first conversation moves faster here than in older corporate markets in Texas.
Area code 737 serves Austin and surrounding communities in Texas. It is in the Central Time zone.
What state is area code 737 in?
Area code 737 is in Texas. It is not in Chicago — those are area code 773.
Is area code 737 toll free?
No. Area code 737 is a geographic area code serving Austin, Texas. The toll-free codes are 800, 833, 844, 855, 866, 877, 888, and a call to a 737 number is charged at your normal rate.
Why am I getting calls from 737?
Calls displaying a 737 number come from businesses and individuals in the Austin area, and from anywhere at all when caller ID is spoofed to look local. 300 737 numbers were reported to the FTC in the 30 days to 8 October 2026.
How do I block calls from area code 737?
Both iOS and Android can silence calls from unknown numbers, and every major US carrier offers free call-blocking. Blocking the whole of area code 737 is rarely worth it, because spoofed numbers change constantly and you would lose legitimate calls from Austin.