California — area code 310
Phone code 310 is dedicated to the state of California.
Phone code 310 is dedicated to the state of California.
Area code 310 is a California telephone area code that was split from area code 213 on November 2, 1991. Area code 424 is an overlay of 310 that became effective on July 26, 2006. It is the area code that covers West Los Angeles and South Bay areas of Los Angeles County, including Santa Catalina Island (located 26 miles (42 km) south of the mainland portion of Los Angeles County). It also includes a small portion of Ventura County. Area code 424 is the first non-mobile area code overlay in Southern California. Because of this, dialers in the 310 area code are no longer able to dial a 7-digit number even if they are dialing another phone number in the same area code. Until the overlay of area codes 657 and 714 became active in 2008, the 310-424 complex was the only area code overlay in the entire state of California, despite California having more area codes than any other state. source
Main city: Los Angeles
Timezone: Pacific
Main city: Los Angeles
Timezone: Pacific
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Phone number full length is 10 digits: (310) xxx-xxxx
International format length is 11 digits: +1 (310) xxx-xxxx
Area 310 covers 7870000 phone numbers: 310-301-0000 — 310-386-9999
There are 900 6-digit prefixes, 787 are in use: 310-301 — 310-386