| District of California area codes: 310 | |
|---|---|
| Country | United States |
| State/Province | California |
| Major City | Los Angeles |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 310-241 | Los Angeles | San Pedro, CA | Pacific Bell |
| 310-242 | Los Angeles | Los Angeles, CA | Teleport Communications Group - Los Angeles |
| 310-243 | Los Angeles | Gardena, CA | Pacific Bell |
| 310-244 | Los Angeles | Culver City, CA | Pacific Bell |
| 310-245 | Los Angeles | Gardena, CA | New Cingular Wireless PCS |
| 310-246 | Los Angeles | Beverly Hills, CA | Pacific Bell |
| 310-247 | Los Angeles | Beverly Hills, CA | Pacific Bell |
| 310-248 | Los Angeles | Beverly Hills, CA | Pacific Bell |
| 310-249 | Los Angeles | Gardena, CA | Usa Mobility Wireless |
| 310-250 | Los Angeles | Gardena, CA | Usa Mobility Wireless |
| 310-251 | Los Angeles | Gardena, CA | New Cingular Wireless PCS |
| 310-252 | Los Angeles | El Segundo, CA | Pacific Bell |
| 310-253 | Los Angeles | Culver City, CA | Pacific Bell |
| 310-254 | Los Angeles | Los Angeles, CA | Mci Worldcom Communications, Ca |
| 310-255 | Los Angeles | Santa Monica, CA | Pacific Bell - Clec |
| 310-256 | Los Angeles | Gardena, CA | Cellco Partnership DBA Verizon Wireless |
| 310-257 | Los Angeles | Lomita, CA | Pacific Bell |
| 310-258 | Los Angeles | Inglewood, CA | Pacific Bell |
| 310-259 | Los Angeles | Inglewood, CA | New Cingular Wireless PCS |
| 310-260 | Los Angeles | Santa Monica, CA | Verizon California Inc.-ca (gte) |
There are 787 prefixes, In the code area, the major cities are Beverly Hills, CA;Carson, CA;Culver City, CA;Garde. The major city is Los Angeles.