<P> Area code 951 is a California telephone area code that was split from area code 909 on July 17, 2004 . It covers western Riverside County, including, Beaumont, Corona, Canyon Lake, Riverside, Temescal Canyon, Woodcrest, Arlington, Mira Loma, Moreno Valley, Perris, Sun City, Lake Elsinore, Wildomar, Murrieta, Temecula, San Jacinto, Hemet, Lakeview, Nuevo, Norco, Banning, Eastvale, Quail Valley, and Idyllwild . </P> <P> Until November 14, 1992, the area covered by 951 was part of area code 714 . </P>

Where is the area code 951 coming from