| 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 |
|---|---|---|---|
| 503-417 | Portland | Multnomah | Landline |
| 503-545 | Portland | Multnomah | Wireless |
| 503-237 | Portland | Washington | Wireless |
| 503-213 | Portland | Multnomah | Landline |
| 503-375 | Salem | Marion | Landline |
| 503-992 | Forest Grove | Washington | Landline |
| 503-657 | Oregon City | Clackamas | Landline |
| 503-782 | Hebo | Tillamook | Landline |
| 503-385 | Salem | Marion | Landline |
| 503-967 | Salem | Marion | Landline |
| 503-287 | Portland | Multnomah | Landline |
| 503-956 | Portland | Multnomah | Wireless |
| 503-656 | Oregon City | Clackamas | Landline |
| 503-615 | Hillsboro | Washington | Landline |
| 503-743 | Turner | Marion | Landline |
| 503-835 | Amity | Yamhill | Landline |
| 503-706 | Portland | Washington | Wireless |
| 503-777 | Portland | Multnomah | Landline |
| 503-693 | Hillsboro | Washington | Landline |
| 503-746 | Beaverton | Washington | Landline |