| General Information about Area Code 858 | |
|---|---|
| Country | United States |
| State / Province / Territory | California |
| Major City | San Diego |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 858-657 | La Jolla | San Diego | Landline |
| 858-495 | San Diego | San Diego | Landline |
| 858-254 | San Diego | San Diego | Wireless |
| 858-756 | Rancho Santa Fe | San Diego | Landline |
| 858-666 | San Diego | San Diego | Landline |
| 858-472 | San Diego | San Diego | Wireless |
| 858-987 | San Diego | San Diego | Landline |
| 858-692 | La Jolla | San Diego | Wireless |
| 858-493 | San Diego | San Diego | Wireless |
| 858-457 | La Jolla | San Diego | Landline |
| 858-771 | Rancho Santa Fe | San Diego | Landline |
| 858-653 | San Diego | San Diego | Landline |
| 858-573 | San Diego | San Diego | Landline |
| 858-618 | San Diego | San Diego | Landline |
| 858-243 | San Diego | San Diego | Wireless |
| 858-822 | La Jolla | San Diego | Landline |
| 858-964 | San Diego | San Diego | Landline |
| 858-812 | La Jolla | San Diego | Landline |
| 858-682 | San Diego | San Diego | Wireless |
| 858-646 | La Jolla | San Diego | Landline |