503 Area Code has 768 prefixes

PrefixPrimary CityCarrier
503-200PortlandNew Cingular Wireless Pcs, Llc
503-201HillsboroCellco Partnership Dba Verizon Wireless - Or
503-202PortlandUsa Mobility Wireless, Inc.
503-203PortlandQwest Corporation
503-204PortlandUsa Mobility Wireless, Inc.
503-205PortlandMcimetro Access Transmission Services Llc
503-206PortlandOnvoy, Llc - Or
503-207PortlandMcimetro Access Transmission Services Llc
503-208PortlandNew Cingular Wireless Pcs, Llc
503-209PortlandSprint Spectrum L.p.
503-210PortlandElectric Lightwave, Llc Dba Integra Telecom - Or
503-212PortlandElectric Lightwave, Llc Dba Integra Telecom - Or
503-213PortlandElectric Lightwave, Llc Dba Integra Telecom - Or
503-214PortlandElectric Lightwave, Llc Dba Integra Telecom - Or
503-215PortlandQwest Corporation
503-216PortlandQwest Corporation
503-217PortlandElectric Lightwave, Llc Dba Integra Telecom - Or
503-218PortlandElectric Lightwave, Llc Dba Integra Telecom - Or
503-219PortlandQwest Corporation
503-220PortlandQwest Corporation
503-221PortlandQwest Corporation
503-222PortlandQwest Corporation
503-223PortlandQwest Corporation
503-224PortlandQwest Corporation
503-225PortlandQwest Corporation
503-226PortlandQwest Corporation
503-227PortlandQwest Corporation
503-228PortlandQwest Corporation
503-229PortlandQwest Corporation
503-230PortlandQwest Corporation
503-231PortlandQwest Corporation
503-232PortlandQwest Corporation
503-233PortlandQwest Corporation
503-234PortlandQwest Corporation
503-235PortlandQwest Corporation
503-236PortlandQwest Corporation
503-237PortlandUsa Mobility Wireless, Inc.
503-238PortlandQwest Corporation
503-239PortlandQwest Corporation
503-240PortlandQwest Corporation
503-241PortlandQwest Corporation
503-242PortlandQwest Corporation
503-243PortlandQwest Corporation
503-244PortlandQwest Corporation
503-245PortlandQwest Corporation
503-246PortlandQwest Corporation
503-247PortlandQwest Corporation
503-248PortlandQwest Corporation
503-249PortlandQwest Corporation
503-250PortlandQwest Corporation
503-251PortlandQwest Corporation
503-252PortlandQwest Corporation
503-253PortlandQwest Corporation
503-254PortlandQwest Corporation
503-255PortlandQwest Corporation
503-256PortlandQwest Corporation
503-257PortlandQwest Corporation
503-258PortlandQwest Corporation
503-259BeavertonFrontier Communications Northwest, Inc. - Or
503-260HillsboroCellco Partnership Dba Verizon Wireless - Or
503-261PortlandQwest Corporation
503-262PortlandQwest Corporation
503-263CanbyCanby Telephone Association
503-265PortlandTeleport Communications America, Llc - Or
503-266CanbyCanby Telephone Association
503-267PortlandT-mobile Usa, Inc.
503-268PortlandTeleport Communications America, Llc - Or
503-269PortlandSprint Spectrum L.p.
503-270PortlandTeleport Communications America, Llc - Or
503-271PortlandUsa Mobility Wireless, Inc.
503-272PortlandCenturytel Of Oregon, Inc. Dba Centurylink
503-273PortlandQwest Corporation
503-274PortlandQwest Corporation
503-275PortlandQwest Corporation
503-276PortlandQwest Corporation
503-277BeavertonFrontier Communications Northwest, Inc. - Or
503-278HillsboroCellco Partnership Dba Verizon Wireless - Or
503-279PortlandQwest Corporation
503-280PortlandQwest Corporation
503-281PortlandQwest Corporation
503-282PortlandQwest Corporation
503-283PortlandQwest Corporation
503-284PortlandQwest Corporation
503-285PortlandQwest Corporation
503-286PortlandQwest Corporation
503-287PortlandQwest Corporation
503-288PortlandQwest Corporation
503-289PortlandQwest Corporation
503-290PortlandMcimetro Access Transmission Services Llc
503-291PortlandQwest Corporation
503-292PortlandQwest Corporation
503-293PortlandQwest Corporation
503-294PortlandQwest Corporation
503-295PortlandQwest Corporation
503-296PortlandQwest Corporation
503-297PortlandQwest Corporation
503-298HillsboroLevel 3 Communications, Llc - Or
503-299PortlandQwest Corporation
503-300SheridanCharter Fiberlink Or-ccvii, Llc - Or
503-301PortlandUsa Mobility Wireless, Inc.