Area Code 503 at a Glance
| Area code | 503 |
| Region | Oregon |
| Country | United States |
| Primary timezone | America/Los_Angeles |
| Dialing format | +1 (503) NXX-XXXX |
Cities and Places Using Area Code 503
Based on prefix-level carrier data, area code 503 covers places including:
- Portland, OR
- Salem, OR
- Beaverton, OR
- Hillsboro, OR
- Gresham, OR
- Lake Oswego, OR
- McMinnville, OR
- Tualatin, OR
- Wilsonville, OR
- Clackamas, OR
- Canby, OR
- Newberg, OR
Frequently Asked Questions
Where is area code 503?
Area code 503 serves Oregon, United States.
Who is calling me from area code 503?
A call from area code 503 most likely originates from Oregon, but caller ID can be spoofed. If an unknown caller asks for personal or payment information, hang up and call the organization back on its official number.
How do I dial a 503 number?
Within North America: dial 1-503 followed by the 7-digit number. From abroad: your international prefix (like 00 or +), then 1 503 and the number.