Area Code (503) Information:

State: Oregon - OR

Major Cities: Astoria, Forest Grove, Silverton, Dallas, Sandy, Durham, Boring, Estacada, Warrenton, Aurora, Saint Helens, Prospect, Clackamas, Barlow, Welches, Eagle Point, Dayton, Keizer, Sheridan, Cornelius

Major Carriers: Lcw Wireless License, Llc, T-mobile Usa, Inc., 360networks (usa) Inc. - Or, Cascade Utilities, Inc., Integra Telecom Of Oregon, Inc. - Or, Clear Creek Mutual Telephone Co., Airtouch Communications, Inc., Pac - West Telecomm, Inc. - Or, At&t Local, Canby Telephone Association, Nextel Communications, Inc., Sprint Spectrum L.p., Comcast Phone Of Oregon, Llc - Or, United Communications, Inc. Dba Unicom - Or, Eschelon Telecomm Of Oregon, Inc. - Or, Verizon Northwest Inc.-or, Nehalem Telecomms, Inc. Dba Nehalem Tel & Tel, Teleport Communications Group, Inc. - Or, Mt. Angel Telephone Co., Blue Licenses Holding, Llc