| 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 |
|---|---|---|---|
| 650-616 | San Bruno | San Mateo | Landline |
| 650-307 | Millbrae | San Mateo | Wireless |
| 650-332 | Redwood City | San Mateo | Landline |
| 650-229 | Fremont | Alameda | Landline |
| 650-798 | Palo Alto | Santa Clara | Landline |
| 650-867 | San Mateo | San Mateo | Wireless |
| 650-366 | Redwood City | San Mateo | Landline |
| 650-684 | Millbrae | San Mateo | Landline |
| 650-306 | Redwood City | San Mateo | Landline |
| 650-565 | Palo Alto | Santa Clara | Landline |
| 650-426 | Mountain View | Santa Clara | Landline |
| 650-564 | Mountain View | Santa Clara | Landline |
| 650-796 | Palo Alto | Santa Clara | Wireless |
| 650-513 | San Mateo | San Mateo | Landline |
| 650-785 | Palo Alto | Santa Clara | Wireless |
| 650-772 | Mountain View | Santa Clara | Wireless |
| 650-568 | Redwood City | San Mateo | Landline |
| 650-685 | San Mateo | San Mateo | Landline |
| 650-591 | San Carlos | San Mateo | Landline |
| 650-585 | Redwood City | San Mateo | Landline |