California
Area code 837
Area code 837 covers Redding, Auburn, Chico, Homewood, Hornbrook and more in California, in the Pacific time zone. It has been in service since 2025. It shares its area with 530 (an overlay).
Most reported 837 numbers
Carriers in 837
Line types
Counted over the exchanges, from the carrier each was assigned to.
Cities in area code 837
Every 837 exchange
The first six digits of a number. Each one with 3 or more flagged numbers has its own page: who it was assigned to and the numbers in it.
| Exchange | City | Carrier | Type | Flagged |
|---|---|---|---|---|
| 837-200 | Ntah Thcy | Onvoy (Sinch) | VoIP | 0 |
| 837-222 | Red Bluff | Opentact | Landline | 0 |
| 837-333 | Redding | Exiant Communications | Landline | 0 |
| 837-444 | Chico | Exiant Communications | Landline | 0 |
| 837-666 | Auburn | Onvoy (Sinch) | VoIP | 0 |
| 837-776 | Redding | Onvoy (Sinch) | VoIP | 0 |
| 837-777 | Truckee | Wide Voice | Landline | 0 |
| 837-800 | Homewood | Onvoy (Sinch) | VoIP | 0 |
| 837-837 | Hornbrook | Onvoy (Sinch) | VoIP | 0 |
| 837-888 | Onvoy (Sinch) | VoIP | 0 | |
| 837-999 | Nevada City | Wide Voice | Landline | 0 |
Area code 837 questions
Where is area code 837?
Area code 837 is in California. Its biggest rate centers are Redding, Auburn, Chico, Homewood, Hornbrook.
What time zone is area code 837?
Area code 837 is in the Pacific time zone.
Is a call from area code 837 a scam?
An area code alone can't tell you. Scammers use and spoof numbers in every area code. Look up the full number to see its reports and FTC/FCC complaints.
What carriers use area code 837?
Of its 11 exchanges, the most were assigned to Onvoy (Sinch), Exiant Communications, Wide Voice. Numbers can be ported to any carrier, so the exchange shows the original carrier only.
What area codes overlay 837?
837 shares its area with 530. In an overlay, new numbers get the newer codes and you dial all ten digits.