| 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 |
|---|---|---|---|
| 650-875 | San Bruno | San Mateo | Landline |
| 650-703 | San Mateo | San Mateo | Wireless |
| 650-814 | Palo Alto | Santa Clara | Wireless |
| 650-590 | Redwood City | San Mateo | Landline |
| 650-556 | Redwood City | San Mateo | Landline |
| 650-560 | Half Moon Bay | San Mateo | Landline |
| 650-963 | Mountain View | Santa Clara | Landline |
| 650-243 | San Bruno | San Mateo | Landline |
| 650-815 | Sunnyvale | Santa Clara | Landline |
| 650-793 | Mountain View | Santa Clara | Wireless |
| 650-235 | San Mateo | San Mateo | Landline |
| 650-652 | Millbrae | San Mateo | Landline |
| 650-244 | San Bruno | San Mateo | Landline |
| 650-993 | Pacifica | San Mateo | Landline |
| 650-544 | Brisbane | San Mateo | Wireless |
| 650-345 | San Mateo | San Mateo | Landline |
| 650-380 | Palo Alto | Santa Clara | Wireless |
| 650-832 | Redwood City | San Mateo | Landline |
| 650-522 | San Mateo | San Mateo | Landline |
| 650-263 | Moss Beach | San Mateo | Landline |