951 Area Code — California
951 is a North American Numbering Plan area code for California, the United States. It covers about 1,996,702 people in 25 towns and 70 ZIP codes, including Riverside, Corona and Moreno Valley.
| Field | Value |
|---|---|
| Area code | 951 |
| Country | United States (+1) |
| State / province | California |
| Type | Standalone (no other NANP code covers the same towns) |
| Time zone | Pacific |
| Population covered | 1,996,702 |
| Towns covered | 25 |
| ZIP codes | 70 |
| Approx. centre | 33.804, -117.237 |
Where area code 951 is used
Area code 951 is assigned to California, the United States, inside the North American Numbering Plan. Numbers in the code are written (951) NXX-XXXX at home and +1 951 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.
Towns and cities in area code 951
The 25 towns below are the largest in the 951 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.
| Town | County | Population | ZIP codes |
|---|---|---|---|
| Riverside | Riverside County | 449,072 | 17 |
| Corona | Riverside County | 263,412 | 7 |
| Moreno Valley | Riverside County | 212,104 | 7 |
| Murrieta | Riverside County | 145,160 | 3 |
| Hemet | Riverside County | 137,670 | 4 |
| Temecula | Riverside County | 127,079 | 5 |
| Perris | Riverside County | 118,178 | 4 |
| Lake Elsinore | Riverside County | 89,823 | 3 |
| Beaumont | Riverside County | 63,833 | 1 |
| Menifee | Riverside County | 61,366 | 1 |
| San Jacinto | Riverside County | 57,134 | 3 |
| Sun City | Riverside County | 50,301 | 2 |
Counties covered
| County | ZIP codes |
|---|---|
| Riverside County | 70 |
Nearby area codes
How to dial area code 951
- Within North America: 951 + 7-digit number (951-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
- From abroad: your country's international prefix, then 1, then 951, then the 7-digit number — for example 00 1 951 NXX-XXXX from most of Europe.
Frequently asked questions
What area code is 951?
951 is a North American Numbering Plan area code assigned to California, the United States. It covers about 1,996,702 people in 25 towns.
Is 951 a US or Canadian area code?
951 is a United States area code. Canada and the United States share the +1 country code, so both are part of the same numbering plan.
What time zone is area code 951 in?
Area code 951 is in the Pacific time zone.
Do I have to dial 10 digits?
Yes. Every NANP call now requires the area code plus the seven-digit number, even for a local call.