The area code 951 is located in Corona, California.
Area code 951 serves Corona, California, and much of western Riverside County in Southern California’s Inland Empire. The region lies east of Orange County and southeast of Los Angeles, centered along the 91 and I‑15 corridors. Phone numbers with the 951 area code are common across local homes, businesses, schools, and city services. The area observes Pacific Time (PT).
Established in 2004 after a split from area code 909, 951 became the primary area code for western Riverside County communities. It distinguishes Riverside County calling from nearby 909 (San Bernardino County) and 760/442 (Coachella Valley and desert areas). Major cities and communities in area code 951 include:
Locally, Corona is nicknamed the “Circle City” for its Grand Boulevard loop, a unique circular roadway dating to the early 1900s. The Inland Empire has grown quickly in recent decades, underscoring the area’s role in logistics, education, and healthcare.
“Riverside County counted 2,418,185 residents in 2020.” — U.S. Census Bureau
Seeing a 951 phone number usually points to a caller from western Riverside County—often from Corona, Riverside, or neighboring cities.