| 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 |
|---|---|---|---|
| 650-394 | Redwood City | San Mateo | Landline |
| 650-328 | Palo Alto | Santa Clara | Landline |
| 650-281 | Brisbane | San Mateo | Wireless |
| 650-597 | San Carlos | San Mateo | Landline |
| 650-688 | Palo Alto | Santa Clara | Landline |
| 650-487 | La Honda | San Mateo | Landline |
| 650-353 | Palo Alto | Santa Clara | Landline |
| 650-888 | San Mateo | San Mateo | Wireless |
| 650-639 | San Mateo | San Mateo | Wireless |
| 650-779 | Redwood City | San Mateo | Landline |
| 650-804 | Palo Alto | Santa Clara | Wireless |
| 650-739 | Palo Alto | Santa Clara | Landline |
| 650-354 | Palo Alto | Santa Clara | Landline |
| 650-947 | Los Altos | Santa Clara | Landline |
| 650-471 | San Jose | Santa Clara | Landline |
| 650-467 | San Bruno | San Mateo | Landline |
| 650-857 | Palo Alto | Santa Clara | Landline |
| 650-387 | Palo Alto | Santa Clara | Wireless |
| 650-736 | Palo Alto | Santa Clara | Landline |
| 650-319 | Sunnyvale | Santa Clara | Landline |