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503 Area Code

Area code 503 serves Portland, Salem, Gresham, Hillsboro, Beaverton and nearby communities in Oregon. It has been in service since January 1, 1947.

StateOregon
Time zonePacific
Local time now…
Prefixes in use784
Overlay with971
Projected to run out2041
PortlandSalemGreshamHillsboroBeavertonTigardAlohaLake OswegoKeizerOregon CityMcMinnvilleWoodburnBethanyHappy ValleyTualatinWilsonvilleForest GroveNewbergWest LinnHayesvilleMilwaukieSherwoodCedar MillCanbyDallasOak GroveFour CornersTroutdaleCorneliusSt. HelensSandyOatfieldGladstoneMonmouthOak HillsDamascusFairviewSilvertonIndependenceMolallaAstoriaBull MountainRockcreekCedar HillsStaytonWest Haven-SylvanScappooseJennings LodgeSeasideWest SlopeGarden Home-WhitfordRaleigh HillsWarrentonSheridanEstacadaMarlene VillageTillamookMount Hood VillagesKing CityPortlandSalemLake Oswego
Cities and towns served by area code 503

Who issues 503 numbers

Mobile 23%VoIP and cable 17%Landline 59%

Share of the 784 prefixes (the three digits after 503) assigned to each type of carrier. Classification by carrier name, approximate.

CarrierPrefixes
Lumen (Qwest)222
Ziply Fiber111
AT&T Mobility71
T-Mobile56
Verizon Wireless54
Lumen (Level 3)52
Allstream51
AT&T (Teleport)34

Cities and towns in area code 503

CityPopulationOther area codes
Portland635,109971
Salem181,779971
Gresham111,513971
Hillsboro111,126971
Beaverton97,842971
Tigard57,929971
Aloha53,362971
Lake Oswego39,722971
Keizer39,140971
Oregon City38,175971
McMinnville34,647971
Woodburn31,948971
Bethany31,700971
Happy Valley28,916971
Tualatin28,139971
Wilsonville27,833971
Forest Grove27,252971
Newberg26,896971
West Linn26,567971
Hayesville22,309971
Milwaukie22,114971
Sherwood20,535971
Cedar Mill19,482971
Canby18,004971
Dallas17,890971
Oak Grove17,408971
Four Corners16,168971
Troutdale15,776971
Cornelius15,520971
St. Helens14,450971
Sandy13,323971
Oatfield12,709971
Gladstone11,865971
Monmouth11,543971
Oak Hills11,464971
Damascus10,888971
Fairview10,762971
Silverton10,450971
Independence10,195971
Molalla10,104971

Showing the 40 largest of 59 places with 5,000+ residents.

Got a call from 503?

A 503 number was originally issued in Oregon, but that does not prove the caller is there. 17% of 503 prefixes belong to VoIP and cable providers, whose numbers can be bought online and used from anywhere. Caller ID can also be spoofed, so treat urgent requests for money, codes or passwords from any area code with suspicion, and call back on a number you already know.

All 784 prefixes in area code 503

Format: (503) XXX-YYYY. Carrier is the company the block was originally assigned to; numbers may since have been ported to another carrier.

Questions about area code 503

Where is area code 503?
Area code 503 is in Oregon. It covers Portland, Salem, Gresham, Hillsboro, Beaverton, Tigard and 53 more cities and towns.
What time zone is area code 503?
Area code 503 is in the Pacific time zone.
Is 503 a toll-free number?
No. 503 is a geographic area code in Oregon. Toll-free numbers in the US start with 800, 833, 844, 855, 866, 877 or 888.
Why does 503 share its area with 971?
503 and 971 form an overlay: they cover the same territory, so new numbers there can get any of these codes, and local calls need all 10 digits.
Will area code 503 run out of numbers?
NANPA's latest forecast projects the 503/971 overlay to exhaust in the first quarter of 2041. Before that happens, a new area code is usually added as an overlay; existing numbers keep their code.

Other area codes in Oregon