Area codes in Riverside, California
Riverside, California uses area code 951. The main Riverside area code is 951.
Area codes serving Riverside
All California area codes · Is a Riverside call a scam?
Nearby cities
- Fontana area codes
- Rialto area codes
- San Bernardino area codes
- Moreno Valley area codes
- Redlands area codes
- Perris area codes
- Ontario area codes
- Corona area codes
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of June 20, 2026. Refreshed monthly.