| General Information about Area Code 650 | |
|---|---|
| Country | United States |
| State / Province / Territory | California |
| Major City | San Mateo |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 650-428 | Mountain View | Santa Clara | Landline |
| 650-279 | Mountain View | Santa Clara | Wireless |
| 650-200 | San Mateo | San Mateo | Landline |
| 650-453 | Redwood City | San Mateo | Landline |
| 650-569 | Redwood City | San Mateo | Landline |
| 650-712 | Half Moon Bay | San Mateo | Landline |
| 650-431 | San Mateo | San Mateo | - |
| 650-290 | Pacifica | San Mateo | Landline |
| 650-419 | La Honda | San Mateo | Landline |
| 650-516 | Pacifica | San Mateo | Landline |
| 650-614 | Palo Alto | Santa Clara | Landline |
| 650-449 | San Francisco | San Francisco | Landline |
| 650-868 | Redwood City | San Mateo | Wireless |
| 650-834 | San Bruno | San Mateo | Wireless |
| 650-368 | Redwood City | San Mateo | Landline |
| 650-265 | Mountain View | Santa Clara | Landline |
| 650-952 | San Bruno | San Mateo | Landline |
| 650-854 | Palo Alto | Santa Clara | Landline |
| 650-776 | Palo Alto | Santa Clara | Wireless |
| 650-264 | Redwood City | San Mateo | Landline |