| General Information about Area Code 503 | |
|---|---|
| Country | United States |
| State / Province / Territory | Oregon |
| Major City | Portland |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 503-802 | Portland | Multnomah | Landline |
| 503-808 | Portland | Multnomah | Landline |
| 503-399 | Salem | Marion | Landline |
| 503-271 | Portland | Washington | Wireless |
| 503-513 | Clackamas | Clackamas | Landline |
| 503-320 | Portland | Washington | Wireless |
| 503-716 | Portland | Multnomah | Landline |
| 503-851 | Salem | Marion | Wireless |
| 503-681 | Hillsboro | Washington | Landline |
| 503-995 | Portland | Multnomah | Wireless |
| 503-990 | Salem | Marion | Wireless |
| 503-861 | Warrenton | Clatsop | Landline |
| 503-297 | Portland | Multnomah | Landline |
| 503-637 | Eagle Creek | Clackamas | Landline |
| 503-710 | Woodburn | Marion | Wireless |
| 503-373 | Salem | Marion | Landline |
| 503-474 | Mcminnville | Yamhill | Landline |
| 503-680 | Portland | Washington | Wireless |
| 503-965 | Hebo | Tillamook | Landline |
| 503-904 | Portland | Washington | Wireless |