Area Codes
| 310 | California (Malibu, Torrance, South Bay, Beverly Hills, Santa Monica, Catalina Island, the Los Angeles Westside, and the coastal suburbs of Los Angeles County, overlays with 424) | More information at: Area Code 310 Phone Number Blocks
| 310 | California (Malibu, Torrance, South Bay, Beverly Hills, Santa Monica, Catalina Island, the Los Angeles Westside, and the coastal suburbs of Los Angeles County, overlays with 424) | More information at: Area Code 310 Phone Number Blocks