Area Codes in Hammond
| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|---|---|---|---|---|
| 503 | Portland, Oregon | Oregon | 583,776 | United States | America/Los_Angeles |
Nearby Cities
| City | Region | Country | Population | Area Codes | Zip Codes |
|---|---|---|---|---|---|
| Astoria, Oregon | Oregon | United States | 9,477 | 503 | 97103 |
| Chinook, Washington | Washington (state) | United States | 466 | 360 | 98614 |
| Ilwaco, Washington | Washington (state) | United States | 936 | 360 | 98624 |
| Seaview, Washington | Washington (state) | United States | — | 360 | — |
| Warrenton, Oregon | Oregon | United States | 4,989 | 503 | 97121, 97146 |