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NPA: 503 [Rate centres in NPA 503] [Dial plan for NPA 503]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-528 5 Portland OR PTLDOR12DS0  9638 QWEST CORPORATION 672      
503-528 6 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2004-09-25   
503-528 7 Portland OR PTLDOR12DS0  9638 QWEST CORPORATION 672      
503-528 8 Portland OR PTLDOR12DS0  9638 QWEST CORPORATION 672      
503-528 9 Portland OR PTLDOR12DS0  9638 QWEST CORPORATION 672      
503-529 A Portland OR PTLDOR69X1X  6630 USA MOBILITY WIRELESS, INC. 672      
503-530 A Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-530 0 Beaverton OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2006-06-11   
503-530 1 Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-530 2 Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-530 3 Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-530 4 Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-530 5 Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-530 6 Beaverton OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2006-08-29   
503-530 7 Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-530 8 Beaverton OR PTLDOR13XFX  318J COMCAST IP PHONE, LLC 672      
503-530 9 Beaverton OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2010-10-03   
503-531 A Beaverton OR SMRWORXADS1  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-532 A Beaverton OR PTLDOR69X9X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672      
503-533 A Beaverton OR SMRWORXADS1  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-534 A Clackamas OR LKOSOR62DS0  9638 QWEST CORPORATION 672      
503-534 0 Clackamas OR LKOSOR62DS0  9638 QWEST CORPORATION 672      
503-534 1 Clackamas OR LKOSOR62DS0  9638 QWEST CORPORATION 672      
503-534 2 Clackamas OR LKOSOR62DS0  9638 QWEST CORPORATION 672      
503-534 3 Clackamas OR LKOSOR62DS0  9638 QWEST CORPORATION 672      
503-534 4 Clackamas OR LKOSOR62DS0  9638 QWEST CORPORATION 672      
503-534 5 Clackamas OR LKOSOR62DS0  9638 QWEST CORPORATION 672      
503-534 6 Clackamas OR   750E ONVOY, LLC - OR 672   2009-10-02   
503-534 7 Clackamas OR LKOSOR62DS0  9638 QWEST CORPORATION 672      
503-534 8 Clackamas OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-534 9 Clackamas OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-535 A Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 0 Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 1 Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 2 Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 3 Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 4 Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 5 Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 6 Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 7 Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 8 Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-535 9 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2005-09-18   
503-536 A Beaverton OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-536 0 Beaverton OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-536 1 Beaverton OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-536 2 Beaverton OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-536 3 Beaverton OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2006-10-19   
503-536 4 Beaverton OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-536 5 Beaverton OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2006-10-19   
503-536 6 Beaverton OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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