Oregon Area Codes
4 active area codes · Portland · Population around 4,265,324
Oregon has 4 active area codes, serving cities like Portland, Salem, and Eugene. Of those, 4 are overlays covering ground another code already covers, which is why local calls there use all ten digits. The newest, 458, has been in service since February 10, 2010. Each code below links to its cities, carriers, timezone, and coverage map.
Oregon Area Code Map
What area codes does Oregon have?
- 458OverlayEugeneMountain / Pacific · 243 cities · 1,726,362
- 503OverlayPortlandPacific Time (PT) · 135 cities · 2,506,323
- 541OverlayEugeneMountain / Pacific · 243 cities · 1,726,362
- 971OverlayPortlandPacific Time (PT) · 135 cities · 2,437,861
More than one of these codes covers 34 of the 36 counties in Oregon, and one county is covered by 4 of them. Each card counts the people inside that code's own boundary at the 2020 census. Adding all 4 gives 8,396,908, against the 4,237,256 the same census counts in those counties, because 4,159,652 residents fall inside more than one code.
Which cities are the largest in Oregon?
How many phone prefixes does Oregon use?
The area codes in Oregon hold 2,077 assigned prefixes between them, listed under 96 distinct carrier names. A prefix is the three digits after the area code, and NANPA assigns each one to a single carrier.
Sources: City populations – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). State populations – the same program, Vintage 2025 (CO-EST2025-ALLDATA). Area-code footprint and county populations – 2020 Census Centers of Population, mapped against NANP area code boundaries. The share of each city inside a code is measured the same way, against Census place boundaries from the Census Bureau's TIGERweb service. Area code assignments – NANPA CO Code data. See our data methodology.
Frequently Asked Questions
How many area codes does Oregon have?
Oregon has 4 active area codes: 458, 503, 541, 971.
What is the main area code for Oregon?
Of the 4 area codes in Oregon, 503 is the oldest one still serving Portland, its largest city. 503 has been in service since 1947.
What are the largest cities in Oregon?
The largest cities in Oregon include Portland, Salem, Eugene, Gresham, Hillsboro.
What is the total population of Oregon?
Oregon has an estimated total population of 4,265,324 based on US Census PEP 2024 data.
Do I have to dial ten digits in Oregon?
In the parts of Oregon covered by an overlay, yes. 4 of the 4 area codes here cover ground another code already covers, and where two codes share an area, local calls need the area code as well as the seven-digit number.
Why does Oregon have 4 area codes?
They arrived one at a time rather than all at once: 503 has been in service since 1947. 4 of the 4 are overlays, laid over a code that already covered the same ground instead of splitting its map in two. The most recent is 458, in service since February 10, 2010.
What is the newest area code in Oregon?
458, in service since February 10, 2010.
Is my county covered by more than one area code in Oregon?
It may be: more than one area code covers 34 of the 36 counties in Oregon, and one county there is covered by 4 of them. The table above shows which codes reach each of the largest cities.