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
503-437 5 McMinnville OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2007-10-14   
503-437 6 McMinnville OR   6529 T-MOBILE USA, INC. 672      
503-437 7 McMinnville OR   5562 METROPCS, INC. 672   2013-12-25   
503-437 8 McMinnville OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-10-23   
503-437 9 McMinnville OR   750E ONVOY, LLC - OR 672   2007-06-04   
503-438 A St Helens OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-438 0 St Helens OR   6529 T-MOBILE USA, INC. 672   2003-06-18   
503-438 1 St Helens OR   7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672   2003-07-12   
503-438 2 St Helens OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-438 3 St Helens OR   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2006-12-22   
503-438 4 St Helens OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2004-07-03   
503-438 5 St Helens OR   6529 T-MOBILE USA, INC. 672   2004-11-13   
503-438 6 St Helens OR   6529 T-MOBILE USA, INC. 672   2008-01-20   
503-438 7 St Helens OR   750E ONVOY, LLC - OR 672   2006-10-14   
503-438 8 St Helens OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2008-11-21   
503-438 9 St Helens OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2011-09-23   
503-439 A Beaverton OR SMRWORXADS1  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-440 A Seaside OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 0 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 1 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 2 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 3 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 4 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 5 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 6 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 7 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 8 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-440 9 Seaside OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-441 A Portland OR PTLDOR69DS1  9638 QWEST CORPORATION 672      
503-442 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-442 0 Portland OR   6529 T-MOBILE USA, INC. 672   2005-03-27   
503-442 1 Portland OR   6529 T-MOBILE USA, INC. 672   2005-03-27   
503-442 2 Portland OR   6529 T-MOBILE USA, INC. 672   2005-03-27   
503-442 3 Portland OR   6529 T-MOBILE USA, INC. 672   2005-03-27   
503-442 4 Portland OR   6529 T-MOBILE USA, INC. 672   2005-03-27   
503-442 5 Portland OR   6529 T-MOBILE USA, INC. 672   2005-03-27   
503-442 6 Portland OR   6529 T-MOBILE USA, INC. 672   2005-03-27   
503-442 7 Portland OR   6529 T-MOBILE USA, INC. 672   2005-03-27   
503-442 8 Portland OR   6529 T-MOBILE USA, INC. 672   2005-03-27   
503-442 9 Portland OR   6529 T-MOBILE USA, INC. 672   2005-04-27   
503-443 A Beaverton OR TGRDORXACG0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-443 0 Beaverton OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2007-06-26   
503-443 1 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-443 2 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-443 3 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-443 4 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-443 5 Beaverton OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2007-06-26   
503-443 6 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-443 7 Beaverton OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-443 8 Beaverton OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2007-06-26   
503-443 9 Beaverton OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2010-03-01   
503-444 A Portland OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2024-01-10   
503-444 0 Portland OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2013-09-16   
503-444 1 Portland OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2013-09-16   
503-444 2 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-444 3 Portland OR   829J PAETEC ITEL, LLC 672   2013-09-04   
503-444 4 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-444 5 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-444 6 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-444 7 Portland OR   318J COMCAST IP PHONE, LLC 672   2013-09-06   
503-444 8 Portland OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2013-09-21   
503-444 9 Portland OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2013-09-21   
503-445 A Portland OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-445 0 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-445 1 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-445 2 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-445 3 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-445 4 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-445 5 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-445 6 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-445 7 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-445 8 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2003-05-12   
503-445 9 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-446 A Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-446 0 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2009-08-31   
503-446 1 Portland OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2010-06-19   
503-446 2 Portland OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2010-06-19   
503-446 3 Portland OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2010-06-19   
503-446 4 Portland OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2010-06-19   
503-446 5 Portland OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2010-06-19   
503-446 6 Portland OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2010-06-19   
503-446 7 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2010-06-19   
503-446 8 Portland OR   750E ONVOY, LLC - OR 672   2010-01-12   
503-446 9 Portland OR   750E ONVOY, LLC - OR 672   2010-01-12   
503-447 A North Plains OR TGRDORAODS0  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-447 0 North Plains OR   7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672      
503-447 1 North Plains OR   318J COMCAST IP PHONE, LLC 672      
503-447 2 North Plains OR   073H TELNYX LLC 672   2020-10-18   
503-447 3 North Plains OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2012-12-06   
503-447 4 North Plains OR   750E ONVOY, LLC - OR 672   2019-11-08   
503-447 5 North Plains OR   750E ONVOY, LLC - OR 672   2006-10-12   
503-447 6 North Plains OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2011-06-04   
503-447 7 North Plains OR   750E ONVOY, LLC - OR 672   2011-09-16   
503-447 8 North Plains OR   750E ONVOY, LLC - OR 672   2019-11-08   
503-447 9 North Plains OR   750E ONVOY, LLC - OR 672   2021-03-05   
503-448 A Aumsville-Turner OR STTNORXADS0  8629 SCS COMMUNICATIONS AND SECURITY, INC. - OR 672      
503-449 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-449 0 Portland OR   6529 T-MOBILE USA, INC. 672      
503-449 1 Portland OR   6529 T-MOBILE USA, INC. 672      
503-449 2 Portland OR   6529 T-MOBILE USA, INC. 672      

<< 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: ISP Telecom

Like this site? We accept donations via PayPal.