| 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 |
|---|---|---|---|
| 503-425 | Portland | Multnomah | Landline |
| 503-943 | Portland | Multnomah | Landline |
| 503-842 | Tillamook | Tillamook | Landline |
| 503-715 | Portland | Multnomah | Landline |
| 503-423 | Portland | Multnomah | Landline |
| 503-698 | Portland | Multnomah | Landline |
| 503-542 | Portland | Multnomah | Landline |
| 503-495 | Beaverton | Washington | Landline |
| 503-947 | Salem | Marion | Landline |
| 503-608 | Beaverton | Washington | Landline |
| 503-717 | Seaside | Clatsop | Landline |
| 503-964 | Portland | Multnomah | Wireless |
| 503-212 | Portland | Multnomah | Landline |
| 503-315 | Salem | Marion | Landline |
| 503-639 | Beaverton | Washington | Landline |
| 503-824 | Colton | Clackamas | Landline |
| 503-713 | Portland | Multnomah | Landline |
| 503-789 | Portland | Washington | Wireless |
| 503-827 | Portland | Multnomah | Landline |
| 503-484 | Portland | Multnomah | Landline |