What area code is 837?
Here's everything about it.
Instant lookup for the 837 area code — location, time zone, cities served, and who's been calling from it. No sign-up, no app.
837 at a glance
Summary
Cities & regions served by 837
Redding / Chico (overlay)8 communities on record for 837.
Where 837 sits on the map
Overlay of 530Coverage area
About the 837 region
837 covers Redding / Chico in California, including Auburn, Davis, Placerville, Susanville and Truckee. The code has been in service since 2025.
837 itself is an overlay: it shares its territory with 530 and was introduced when those codes ran low on new number combinations. New lines may receive either code, calls between them are local, and 10-digit dialing is required across the region.
Overlaid on 530 California's 40th area code.
Who called me from 837?
Community reports- Caller ID is trivially spoofed: an incoming call that displays 837 does not prove the caller is really in the 837 region or even in the United States.
- Avoid calling back unknown one-ring numbers — some premium-rate scams rely on curiosity callbacks.
- Never share verification codes, payment details, or remote access during an unsolicited call, even if the caller claims to be your bank or a government agency.
- When a 837 call pressures you to act immediately, hang up and contact the organization directly through its official number.
Be the first to add a community report for a 837 number below.
Frequently asked questions
FAQWhat area code is 837?+–
837 is a telephone area code serving Redding / Chico in California, United States, in service since 2025.
Where is area code 837 located?+–
It covers Auburn, Davis, Placerville, Susanville and Truckee in California.
What cities are in area code 837?+–
Major communities on record include Auburn, Davis, Placerville, Susanville and Truckee, among others. The code's territory spans the Redding / Chico region of California.
What time zone is 837?+–
837 observes Pacific (PT), which is UTC−8 / −7 DST and follows daylight saving time.
When did area code 837 start?+–
837 entered service in 2025. Its history: overlaid on 530 California's 40th area code.
Why does area code 837 exist?+–
837 is an overlay of 530: it covers the exact same territory and was introduced when the original code ran low on new number combinations. New lines may receive either code, calls between them are local, and 10-digit dialing applies.
Is 837 a scam area code?+–
Scam and robocall traffic can use any North American code, 837 included — caller ID is easy to spoof, so the code alone does not tell you who is really calling. Check the community reports on this page before calling back an unknown 837 number, and report anything suspicious.
Can I get a 837 phone number?+–
Yes — most mobile carriers and VoIP providers let you request a 837 number regardless of where you physically live, although in an overlaid region you may be assigned 530 instead.