| 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 |
|---|---|---|---|
| 650-859 | Palo Alto | Santa Clara | Landline |
| 650-294 | San Mateo | San Mateo | Landline |
| 650-630 | Palo Alto | Santa Clara | Wireless |
| 650-943 | Mountain View | Santa Clara | Landline |
| 650-533 | Brisbane | San Mateo | Wireless |
| 650-234 | Palo Alto | Santa Clara | Landline |
| 650-839 | Redwood City | San Mateo | Landline |
| 650-389 | San Mateo | San Mateo | Landline |
| 650-437 | San Mateo | San Mateo | Landline |
| 650-337 | Pescadero | San Mateo | Landline |
| 650-666 | Palo Alto | Santa Clara | Landline |
| 650-224 | Mountain View | Santa Clara | Wireless |
| 650-488 | San Francisco | San Francisco | Landline |
| 650-370 | Palo Alto | Santa Clara | Wireless |
| 650-236 | Palo Alto | Santa Clara | Landline |
| 650-999 | Palo Alto | Santa Clara | Landline |
| 650-931 | San Mateo | San Mateo | Landline |
| 650-932 | Mountain View | Santa Clara | Landline |
| 650-408 | San Mateo | San Mateo | Wireless |
| 650-477 | San Mateo | San Mateo | Landline |