Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-425 7 Portland OR   9638 QWEST CORPORATION 672      
503-425 8 Portland OR   9638 QWEST CORPORATION 672      
503-425 9 Portland OR   6529 T-MOBILE USA, INC. 672   2004-07-10   
503-426 A Portland OR PTLDORPBDS0  8294 NORTH COUNTY COMMUNICATION CORPORATION - OR 672      
503-427 A Stafford-Sandy OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-427 0 Stafford-Sandy OR   318J COMCAST IP PHONE, LLC 672   2006-01-26   
503-427 1 Stafford-Sandy OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672      
503-427 2 Stafford-Sandy OR   318J COMCAST IP PHONE, LLC 672   2009-04-30   
503-427 3 Stafford-Sandy OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2005-04-08   
503-427 4 Stafford-Sandy OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2005-04-08   
503-427 5 Stafford-Sandy OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2005-04-08   
503-427 6 Stafford-Sandy OR   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2007-05-20   
503-427 7 Stafford-Sandy OR   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2004-10-01   
503-427 8 Stafford-Sandy OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2008-11-29   
503-427 9 Stafford-Sandy OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2011-03-20   
503-428 A Salem OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-428 0 Salem OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-01-03   
503-428 1 Salem OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2004-09-04   
503-428 2 Salem OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2004-11-08   
503-428 3 Salem OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-01-03   
503-428 4 Salem OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-02-06   
503-428 5 Salem OR   829J PAETEC ITEL, LLC 672   2003-12-13   
503-428 6 Salem OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2005-02-25   
503-428 7 Salem OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2005-03-28   
503-428 8 Salem OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-02-06   
503-428 9 Salem OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-429 A Vernonia OR VRNNORXXRS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-430 A Beaverton OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-430 0 Beaverton OR   318J COMCAST IP PHONE, LLC 672      
503-430 1 Beaverton OR   318J COMCAST IP PHONE, LLC 672      
503-430 2 Beaverton OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-430 3 Beaverton OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-430 4 Beaverton OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2011-05-07   
503-430 5 Beaverton OR   318J COMCAST IP PHONE, LLC 672      
503-430 6 Beaverton OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-430 7 Beaverton OR   318J COMCAST IP PHONE, LLC 672      
503-430 8 Beaverton OR   318J COMCAST IP PHONE, LLC 672      
503-430 9 Beaverton OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2011-07-31   
503-431 A Beaverton OR TGRDORXACG0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-431 0 Beaverton OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2007-05-14   
503-431 1 Beaverton OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2007-03-08   
503-431 2 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-431 3 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-431 4 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-431 5 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-431 6 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-431 7 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-431 8 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-431 9 Beaverton OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2007-03-08   
503-432 A Portland OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-432 0 Portland OR   6529 T-MOBILE USA, INC. 672   2006-05-19   
503-432 1 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-03-26   
503-432 2 Portland OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-432 3 Portland OR   6529 T-MOBILE USA, INC. 672   2005-06-12   
503-432 4 Portland OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-432 5 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-03-26   
503-432 6 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-03-26   
503-432 7 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-06-22   
503-432 8 Portland OR   318J COMCAST IP PHONE, LLC 672      
503-432 9 Portland OR   6529 T-MOBILE USA, INC. 672   2005-08-04   
503-433 A North Plains OR PTLDOR69X9X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672      
503-433 0 North Plains OR   647F ELTOPIA COMMUNICATIONS LLC - OR 672   2010-07-17   
503-433 1 North Plains OR   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2007-04-27   
503-433 2 North Plains OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2011-09-16   
503-433 3 North Plains OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2011-09-16   
503-433 4 North Plains OR   750E ONVOY, LLC - OR 672   2011-01-21   
503-433 5 North Plains OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2011-09-16   
503-433 6 North Plains OR   073H TELNYX LLC 672   2020-05-18   
503-433 7 North Plains OR   750E ONVOY, LLC - OR 672   2009-03-12   
503-433 8 North Plains OR   750E ONVOY, LLC - OR 672   2012-09-26   
503-433 9 North Plains OR   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672      
503-434 A McMinnville OR MMVLORXXDS1  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-435 A McMinnville OR MMVLORXXDS1  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-435 0 McMinnville OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-435 1 McMinnville OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-435 2 McMinnville OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-435 3 McMinnville OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-435 4 McMinnville OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-435 5 McMinnville OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-435 6 McMinnville OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-435 7 McMinnville OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-435 8 McMinnville OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-435 9 McMinnville OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-436 A Cannon Beach OR CNBHOR64DS0  9638 QWEST CORPORATION 672      
503-436 0 Cannon Beach OR   9638 QWEST CORPORATION 672      
503-436 1 Cannon Beach OR   9638 QWEST CORPORATION 672      
503-436 2 Cannon Beach OR   9638 QWEST CORPORATION 672      
503-436 3 Cannon Beach OR   750E ONVOY, LLC - OR 672   2020-11-10   
503-436 4 Cannon Beach OR   792K CHARTER IP ENABLED SERVICES, LLC 672   2007-07-17   
503-436 5 Cannon Beach OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2012-01-27   
503-436 6 Cannon Beach OR   750E ONVOY, LLC - OR 672   2012-09-26   
503-436 7 Cannon Beach OR   750E ONVOY, LLC - OR 672   2007-08-12   
503-436 8 Cannon Beach OR   9638 QWEST CORPORATION 672      
503-436 9 Cannon Beach OR   9638 QWEST CORPORATION 672      
503-437 A McMinnville OR PTLJORIY0MD  5562 METROPCS, INC. 672      
503-437 0 McMinnville OR   5562 METROPCS, INC. 672      
503-437 1 McMinnville OR   5562 METROPCS, INC. 672      
503-437 2 McMinnville OR   5562 METROPCS, INC. 672      
503-437 3 McMinnville OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2007-05-19   
503-437 4 McMinnville OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2007-09-06   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.