The 503 area code is a telephone area code serving the northwestern region of Oregon, including the cities of Portland, Salem, and Astoria. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 503 area code) below and access available caller information such as name, address, and more.
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Area code 503 covers the northwestern corner of the state of Oregon.
Area code 503 is overlaid by area code 971. Area code 503 was established in 1947, and area code 971 was introduced in stages, completed in 2008. Ten-digit dialing is required in this region.
Area code 503 is a General Purpose Code which was placed in service on January 1, 1947.
Our reverse phone lookup will analyze the three-digit prefix of any 503 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Oregon geographic region, and local calling area associated with the phone number.
| Company | Number of Prefixes |
|---|---|
| QWEST CORPORATION | 213 |
| ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER | 110 |
| NEW CINGULAR WIRELESS PCS, LLC | 71 |
| T-MOBILE USA, INC. | 55 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR | 54 |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 51 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - OR | 35 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 22 |
| LEVEL 3 TELECOM OF OREGON, LLC - OR | 20 |
| GLOBAL CROSSING LOCAL SERVICES, INC. - OR | 16 |
| UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR | 12 |
| LEVEL 3 COMMUNICATIONS, LLC - OR | 10 |
| USA MOBILITY WIRELESS, INC. | 8 |
| METROPCS, INC. | 7 |
| CENTURYTEL OF OREGON, INC. DBA CENTURYLINK | 6 |
| ONVOY, LLC - OR | 6 |
| COMCAST IP PHONE, LLC | 5 |
| CASCADE UTILITIES, INC. | 4 |
| ASTOUND BROADBAND, LLC - OR | 3 |
| CANBY TEL. ASSN. | 3 |
| XO OREGON, INC. | 3 |
| MOLALLA TEL. CO. | 2 |
| STAYTON COOP. TEL. CO. | 2 |
| BEAVER CREEK COOP. TEL. CO. | 1 |
| BEAVER CREEK COOPERATIVE TELEPHONE COMPANY - OR | 1 |
| CLEAR CREEK MUTUAL TEL. CO. | 1 |
| COLTON TEL. CO. | 1 |
| GERVAIS TEL. CO. | 1 |
| MAGNA5 LLC | 1 |
| MONITOR COOP. TEL. CO. | 1 |
| MT. ANGEL TEL. CO. | 1 |
| NEHALEM TELECOMMS, INC. DBA NEHALEM TEL & TEL | 1 |
| NORTH COUNTY COMMUNICATION CORPORATION - OR | 1 |
| OREGONTEL, LLC - OR | 1 |
| PACIFIC WAVE COMMUNICATIONS | 1 |
| PEOPLES TEL. CO. | 1 |
| SCIO MUTUAL TEL. CO. | 1 |
| ST. PAUL COOP. TEL. ASSN. | 1 |
| TELTRUST CORPORATION - OR | 1 |
| YMAX COMMUNICATIONS CORP. - OR | 1 |
| Rate Center | Number of Prefixes |
|---|---|
| PORTLAND | 323 |
| BEAVERTON | 104 |
| SALEM | 73 |
| CLACKAMAS | 49 |
| STFRD-SNDY | 25 |
| GRESHAM | 21 |
| MCMINNVL | 12 |
| WOODBURN | 8 |
| ASTORIA | 7 |
| DALLAS | 7 |
| NEWBERG | 7 |
| SHERWOOD | 7 |
| NORTH PL | 6 |
| ST HELENS | 6 |
| TILLAMOOK | 6 |
| SEASIDE | 5 |
| STAYTON | 4 |
| CANBYNEEDY | 3 |
| ESTACADA | 3 |
| AUMSVLTRNR | 2 |
| AURORA | 2 |
| BEAVER | 2 |
| BEAVER CRK | 2 |
| CLATSKANIE | 2 |
| DAYTON | 2 |
| GRANDRONDE | 2 |
| HOOD LAND | 2 |
| KNAPPA | 2 |
| MOLALLA | 2 |
| MOUNTANGEL | 2 |
| RAINIER | 2 |
| SCAPPOOSE | 2 |
| SILVERTON | 2 |
| WESTPORT | 2 |
| AMITY | 1 |
| BAY CITY | 1 |
| CANNON BCH | 1 |
| CARLTON | 1 |
| CHARBONNEU | 1 |
| CLOVERDALE | 1 |
| COLTON | 1 |
| CORBETT | 1 |
| DETROIT | 1 |
| FALLS CITY | 1 |
| GARIBALDI | 1 |
| GERVAIS | 1 |
| GOVENTCAMP | 1 |
| GRAND IS | 1 |
| JEWELL | 1 |
| LYONS | 1 |
| MILL CITY | 1 |
| MONITOR | 1 |
| NEHALEM | 1 |
| PACIFIC CY | 1 |
| REDLAND | 1 |
| ROCKAWAY | 1 |
| SCIO | 1 |
| SHERIDAN | 1 |
| ST PAUL | 1 |
| VERNONIA | 1 |
| WARRENTON | 1 |
| WILLAMINA | 1 |
| YAMHILL | 1 |
Lookup phone numbers starting with other Oregon area codes:
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