Area code 837

837 is a newer area code, in service since January 31, 2025, added on top of 530. See all new area codes.

Look up a 837 number

Cities and towns in area code 837

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 837.

• Redding, CA (2)
• Auburn, CA (1)
• Chico, CA (1)
• Homewood, CA (1)
• Hornbrook, CA (1)
• Nevada City, CA (1)
• Red Bluff, CA (1)
• Shinglespg, CA (1)
• Tahoe City, CA (1)
• Truckee, CA (1)

Phone companies in area code 837

The carriers that hold the most 837 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

All 11 prefixes in area code 837

Pick the 3 digits after the area code to see that prefix’s city and carrier.

• 200
• 222
• 333
• 444
• 666
• 776
• 777
• 800
• 837
• 888
• 999

Area codes that overlay 837

• 530

Questions

Where is area code 837?

Area code 837 is in California. It serves Redding, Auburn, Chico, Homewood and Hornbrook and 5 other cities and towns.

What time zone is area code 837 in?

Area code 837 uses Pacific Time.

What area codes overlay 837?

530 serves the same area as 837. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.

Is a call from area code 837 a scam?

The area code alone doesn’t tell you. Most calls from 837 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 837 number, let it go to voicemail.

When did area code 837 start?

837 went into service in 2025. It was created from area code 530.

Can a 837 number be outside California?

Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 837 caller can be anywhere.

Other area codes in California