Learn about the 503 area code, including its location, cities, time zone, introduction date, and related area codes.
503 Area Code Details
Major Cities in the 503 Area Code
The 503 area code is associated with the following cities and communities:
- Aloha
- Beaverton
- Gresham
- Hillsboro
- Keizer
- Lake Oswego
- McMinnville
- Milwaukie
- Oregon City
- Portland
- Salem
- Tigard
- Tualatin
- West Linn
- Woodburn
Where Is Area Code 503 Located?
The 503 area code serves communities in Oregon. The exact communities and numbering assignments can change as telephone numbering resources are updated.
503 Area Code Time Zone
The 503 area code is associated with the Pacific time zone.
When Was 503 Area Code Introduced?
The 503 area code was introduced in 01-Jan-1947.
How to Call a 503 Area Code Number
For a call within the same numbering plan, dial the required local number according to your carrier’s dialing rules. For calls from outside the United States, use the United States country code (+1), followed by the area code and seven-digit telephone number.
Related Area Codes
503 Area Code FAQ
What state is 503 area code in?
The 503 area code is associated with Oregon.
What time zone is 503 area code in?
The 503 area code is associated with Pacific.
What cities use 503 area code?
Aloha|Beaverton|Gresham|Hillsboro|Keizer|Lake Oswego|McMinnville|Milwaukie|Oregon City|Portland|Salem|Tigard|Tualatin|West Linn|Woodburn
More Questions About Area Code 503
What state is area code 503 in?
Area code 503 is associated with Oregon.
What time zone is area code 503 in?
The listed time zone for area code 503 is Pacific.