Area Code 503
Area code 503 covers Portland and nearby cities including Salem, Gresham, Hillsboro in Oregon, in the Pacific Time.
Area code 503 quick facts
| Location | Portland, Oregon |
|---|---|
| Time zone | Pacific Time |
| In service | 1947-01-01 |
| Overlay codes | 971 |
| Nearby codes | 971, 458, 541, 253, 360, 206 |
| Carrier coverage | 784 prefixes; 37% wireless |
| FTC complaint data | 283 complaints across 68 numbers |
| Data current as of | August 2, 2026 |
Is a call from 503 a scam? Who called me from 503?
FTC complaints involving 503 numbers
Numbers shown with area code 503 in the FTC's Do Not Call “Reported Calls” database (recent reporting window). Most common reported reasons: “Other”, “Calls pretending to be government, businesses, or family and friends”, “Dropped call or no message”.
Most-complained 503 numbers:
- (503) 436-7151 — 20 complaints
- (503) 436-7160 — 19 complaints
- (503) 293-4841 — 9 complaints
- (503) 987-3673 — 9 complaints
- (503) 658-9461 — 6 complaints
These are FTC Do Not Call complaints filed about specific numbers shown with this area code — frequently spoofed. The area code itself is not a scam. See the most-reported area codes and the most-reported phone numbers nationwide.
Cities in area code 503
Portland, Salem, Gresham, Hillsboro, Beaverton, Tigard, Lake Oswego, Keizer, Aloha, McMinnville, Milwaukie, Oregon City
Area codes by city
Carriers in area code 503
Area code 503 spans 784 prefixes, about 37% wireless. Top carriers: QWEST CORPORATION, NEW CINGULAR WIRELESS PCS, LLC, T-MOBILE USA, INC., CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR. Look up the carrier and line type for a 503 number.
Other Oregon area codes
Nearby area codes
Frequently asked questions
Where is area code 503?
Area code 503 covers Portland and nearby cities including Salem, Gresham, Hillsboro in Oregon, in the Pacific Time.
What cities use area code 503?
Area code 503 serves Portland, Salem, Gresham, Hillsboro, Beaverton, and 10 other communities in Oregon.
What time zone is area code 503 in?
Area code 503 is in the Pacific Time (America/Los_Angeles).
How do you dial a 503 number?
Dial all 10 digits: 503 followed by the 7-digit local number. From abroad, dial +1 503 and the local number.
Is a call from area code 503 a scam?
A 503 number is geographically tied to Oregon, but caller ID can be spoofed, so the displayed area code does not prove where a caller really is. If you did not expect the call, do not share personal information and consider looking the number up.
Is 503 a country code?
No. 503 is a US area code (a domestic 3-digit code), not a country code. The country (calling) code for the United States is +1, shared across the North American Numbering Plan. So a full 503 number written for international dialing looks like +1 503 followed by the 7-digit local number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.