Cities in area code 951

21 localities · NANPA data, current as of July 28, 2026.

Which places use area code 951? 21 rate centers in California, the biggest being Riverside, Corona, Temecula. Data below is NANPA's official prefix-to-rate-center mapping.

Riverside, Corona, Temecula, Perris, Moreno, Arlington, Murrieta and Hemet:hemet Da hold the largest prefix inventories; and 12 smaller communities down to single-prefix localities. Each locality below links to its rate-center page with the full prefix list.

21 of the localities fall within FCC top-100 metropolitan statistical areas; the rest are smaller communities.

5 of these localities are also reachable through other area codes — overlay territory where the same place answers to several codes.

All of the code's territory keeps Pacific time.

Remember that people keep numbers when they relocate, so a 951 number is a where-it-was-issued fact, not a where-they-are fact.

FAQ

What is the biggest city in area code 951?

Riverside holds the most active prefixes (148), making it the code's largest numbering locality.

How many places does 951 cover?

21 rate centers in California hold active 951 prefixes, from Riverside down to communities with a single prefix.

Does a 951 number guarantee the caller lives in one of these places?

No — the tables show where number blocks were issued. Porting and VoIP let people keep or acquire numbers anywhere.