Area codes in Corvallis, Oregon
Corvallis, Oregon uses 2 area codes — 541 and 458. The main Corvallis area code is 541.
Area codes serving Corvallis
Phone numbers in Corvallis are written as ten digits — for example (541) 555-0190 — and fall in the Mountain & Pacific Time zone.
How Corvallis came to have 2 area codes
The original Corvallis area code is 541, in service since 1995. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 458 (2010). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Corvallis now uses all 2 codes and every local call is dialed with ten digits.
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Nearby cities
- Salem area codes
- Eugene area codes
- Hillsboro area codes
- Beaverton area codes
- Portland area codes
- Vancouver area codes
- Medford area codes
- Olympia area codes
Frequently asked questions
What is the area code for Corvallis?
The main area code for Corvallis, Oregon is 541. Corvallis is now served by 2 area codes in total: 541, 458.
How many area codes does Corvallis have?
Corvallis has 2 area codes: 541, 458.
Why does Corvallis have more than one area code?
As Corvallis used up the numbers available in its original area code (541, in service since 1995), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Corvallis number?
Dial all 10 digits — the area code (541 or 458) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.