Area codes 503 and 971 are telephone area codes in the North American Numbering Plan (NANP) for the northwestern region of the U.S. state of Oregon. The numbering plan area (NPA) comprises the cities of Portland, Salem, and Astoria.

Under the original North American Numbering Plan of 1947, area code 503 covered all of Oregon. Area code 541 was split off in 1995, the 971 overlay of 503 became active in 2000, and the 458 overlay of 541 became active in 2010.

Area codes 503 and 971 are area codes for Oregon. Area code 503 was one of earliest area codes ever created. It was made in 1947. It originally covered the entire state, but after it was split by 541 in 1995, [1] 503 now covers only the northwest portion of the state.

The 971 area code is a North American telephone area code that serves the northwestern part of Oregon state, including the cities of Salem and Portland. The 971 area code was created in 2000 when it was split from the original 503 area code.

2025年2月1日 · 971 Area Code located in Oregon, including 64 cities, 10 counties, 1 time zone, map, Census demographics, and 381 active prefixes.

3 天之前 · 503 Area Code located in Oregon, including 73 cities, 10 counties, 1 time zone, map, Census demographics, and 782 active prefixes.

Area codes 503 and 971 are telephone area codes in the North American Numbering Plan (NANP) for the northwestern region of the U.S. state of Oregon. The numbering plan area (NPA) comprises the cities of Portland, Salem, and Astoria.

2024年6月2日 · An overlay of area code 503. Until 2008, 971 was a concentrated overlay, meaning it was only present in some parts of the 503 area. Today it is a standard overlay.

Area code 503 serves the state of Oregon. This area code was assigned on January 1st, 1947. On January 1st, 1947 it went into service. 503 is a General Purpose Code. 503 service area does overlap with 971 area codes. Dialing pattern for local calls within the same NPA (area code) is …

2025年2月23日 · Area code 503 is located in Oregon and includes Portland. View the 503 area code map, major cities, location, timezone and more on TeraCodes.com.