Riverside, CA Area Code

Area code serving Riverside

Riverside sits in California, part of the West region and the Pacific Time zone. Its area code is 951, which covers western Riverside County including Riverside, Moreno Valley, Corona and Temecula. 951 has no overlay today, so every Riverside landline and mobile number with a local code starts with 951.

951 has served the area since 2004. If the region runs low on numbers, regulators will most likely add an overlay code on top rather than split the area, which would make 10-digit dialing mandatory.

Code	Area served	In service
951	Western Riverside County including Riverside, Moreno Valley, Corona and Temecula	July 17, 2004

Nearby cities sharing this area code

• Moreno Valley
• Corona
• Murrieta
• Temecula
• Menifee
• Jurupa Valley
• Hemet
• Perris
• Lake Elsinore
• Eastvale
• Beaumont
• Banning
• San Jacinto

Getting a Riverside phone number

Any new landline, mobile or VoIP number from a local carrier in Riverside gets the 951 area code. Numbers come from the blocks each carrier holds in the area; a number ported in from elsewhere keeps its original area code, so you may also see out-of-state codes locally.

Dialing in Riverside

Riverside is covered by the single area code 951 with no overlay, so some local calls may still connect with seven digits. Dialing all 10 digits (area code + seven-digit number) always works and is the safest habit. From outside the US, dial +1, then the area code and number. See 10-digit dialing and overlay area codes for the background. For every code in California, visit the California area codes page.