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Area Code 503 Information

The 503 Area Code (or Area Code 503) is located in the state of OR. Area Code 503 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 2.43 million unique phone numbers and 8.07 million individuals near the city of Portland

Area Code 503 History

Area code 503 was put into service. In 1995 area code 503 was split to form area code 541. In 2000 area code 503 was partially overlaid with area code 971 and in 2008 the overlay was extended to all of area code 503.

There are other places with the same area code 503:

Beaverton, OR>Gresham, OR>Hillsboro, OR>Keizer, OR>Lake Oswego, OR>Mcminnville, OR>Milwaukie, OR>Oregon City, OR>Portland, OR>Salem, OR>Tigard, OR>Tualatin, OR>West Linn, OR>Woodburn, OR