| 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 |
|---|---|---|---|
| 310-974 | Los Angeles | Torrance, CA | Mci Worldcom Communications, Ca |
| 310-975 | Los Angeles | Los Angeles, CA | Mci Worldcom Communications, Ca |
| 310-976 | North County Communications Corp. | ||
| 310-977 | Los Angeles | Gardena, CA | New Cingular Wireless PCS |
| 310-978 | Los Angeles | Hawthorne, CA | Pacific Bell |
| 310-979 | Los Angeles | Los Angeles, CA | Verizon California Inc.-ca (gte) |
| 310-980 | Los Angeles | Santa Monica, CA | T-mobile Usa |
| 310-981 | Los Angeles | Inglewood, CA | AT&T Local |
| 310-982 | Los Angeles | San Pedro, CA | Sprint Spectrum L.p. |
| 310-983 | Los Angeles | Los Angeles, CA | Pacific Bell - Clec |
| 310-984 | Los Angeles | San Pedro, CA | Broadwing Communications |
| 310-985 | Los Angeles | Santa Monica, CA | T-mobile Usa |
| 310-986 | Los Angeles | Lomita, CA | T-mobile Usa |
| 310-987 | Los Angeles | San Pedro, CA | Sprint Spectrum L.p. |
| 310-988 | Los Angeles | Inglewood, CA | Cellco Partnership DBA Verizon Wireless |
| 310-989 | Los Angeles | Gardena, CA | New Cingular Wireless PCS |
| 310-990 | Los Angeles | Beverly Hills, CA | New Cingular Wireless PCS |
| 310-991 | Los Angeles | Los Angeles, CA | Cellco Partnership DBA Verizon Wireless |
| 310-992 | Los Angeles | Santa Monica, CA | Usa Mobility Wireless |
| 310-993 | Los Angeles | Beverly Hills, CA | New Cingular Wireless PCS |
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.