Oregon Area Codes
Compare 4 in-service area codes assigned to Oregon. Explore each code’s introduction date, overlays, possible time zones, and public prefix records.
Oregon numbering at a glance
- In-service area codes
- 4
- Time-zone labels in NANPA data
- Mountain, Pacific
- Listed in-service or assigned prefixes
- 2,210 · source dated 2026-09-29
These are numbering assignments. The counts do not represent active phone numbers, current carriers, or a caller’s physical location.
Compare area codes in Oregon
| Code | Introduced | Other codes in overlay | Time zones | Listed prefixes |
|---|---|---|---|---|
| 458 | 10-Feb-2010 | 541 | Mountain, Pacific | 213 |
| 503 | 01-Jan-1947 | 971 | Pacific | 783 |
| 541 | 05-Nov-1995 | 458 | Mountain, Pacific | 781 |
| 971 | 01-Oct-2000 | 503 | Pacific | 433 |
Source: NANPA NPA database, dated 2026-09-28. Prefix counts: NANPA US assignment report. View official area-code maps.
Overlay groups in Oregon
Codes in an overlay group can serve the same broad numbering area. A person may keep a number after moving, and the displayed number may be spoofed.
Find a number in Oregon
Open an area-code page above to check a prefix and possible time zones. You can also search US telephone rate-center names; those names are not exact city coverage.
A code cannot verify the owner of a number. If an unexpected caller asks for money or sensitive information, verify the claim independently.