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All Area Codes/California
951

Corona, California

Area code 951

Where Is Area Code 951?

Area code 951 is in Southern California. It serves much of western Riverside County, including Corona, Riverside, Moreno Valley, Murrieta, Menifee, Perris, Hemet, and Temecula.

This area code covers inland communities east of Orange County and southeast of Los Angeles County. It serves cities in the Inland Empire region, with Riverside and Corona among the best-known places in the 951 area.

Area code 951 also reaches places near major regional features such as the Santa Ana River and the Santa Ana Mountains. It covers communities near well-known sites including the Mission Inn in Riverside and Lake Elsinore in the city of Lake Elsinore.

History of Area Code 951

Area code 951 began service on July 17, 2004. It was created in a split from area code 909 as population growth and phone number demand increased in Riverside County.

Area code 951 is a split area code, not an overlay. The split gave western Riverside County its own code, while 909 continued to serve parts of San Bernardino County and nearby areas.

Key Facts About Area Code 951

  • Area code 951 is in California, and Corona is one of the major cities in the 951 service area.
  • Area code 951 serves western Riverside County, including Riverside, Corona, Moreno Valley, Murrieta, Menifee, Perris, Hemet, Temecula, and Lake Elsinore.
  • Area code 951 is in the Pacific Time Zone.
  • Area code 951 started on July 17, 2004, when it split from area code 909.
  • Area code 951 is a geographic local area code, not a toll-free area code.
  • Riverside County had a population of 2,418,185 in the 2020 United States Census, and 951 serves the county's western and southwestern population centers.
  • Notable places in the 951 area include the University of California, Riverside, the Mission Inn Hotel & Spa in Riverside, and Lake Elsinore.
  • The 951 region is part of the Inland Empire, a major Southern California metropolitan area.

Frequently Asked Questions

What state is area code 951 in?

Area code 951 is in California.

What major cities use area code 951?

Major cities in area code 951 include Corona, Riverside, Moreno Valley, Murrieta, Menifee, Perris, Hemet, Temecula, and Lake Elsinore.

Is area code 951 a toll-free number?

No. Area code 951 is a geographic area code.

Last updated: April 2026

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