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
503-840 4 Beaverton OR   5562 METROPCS, INC. 672   2006-07-28   
503-840 5 Beaverton OR   5562 METROPCS, INC. 672   2006-12-13   
503-840 6 Beaverton OR   829J PAETEC ITEL, LLC 672   2010-08-27   
503-840 7 Beaverton OR   5562 METROPCS, INC. 672   2006-01-16   
503-840 8 Beaverton OR   5562 METROPCS, INC. 672   2006-01-16   
503-840 9 Beaverton OR   5562 METROPCS, INC. 672   2006-12-13   
503-841 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-841 0 Portland OR   6529 T-MOBILE USA, INC. 672   2005-12-12   
503-841 1 Portland OR   6529 T-MOBILE USA, INC. 672   2005-12-12   
503-841 2 Portland OR   6529 T-MOBILE USA, INC. 672   2005-12-12   
503-841 3 Portland OR   6529 T-MOBILE USA, INC. 672   2005-12-12   
503-841 4 Portland OR   5562 METROPCS, INC. 672   2006-01-04   
503-841 5 Portland OR   318J COMCAST IP PHONE, LLC 672   2005-12-22   
503-841 6 Portland OR   318J COMCAST IP PHONE, LLC 672   2005-12-22   
503-841 7 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-01-03   
503-841 8 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-01-03   
503-841 9 Portland OR   6529 T-MOBILE USA, INC. 672   2005-12-12   
503-842 A Tillamook OR TLMKORXARS0  4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 A Sheridan OR SHRDORXADS0  4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 0 Sheridan OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 1 Sheridan OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 2 Sheridan OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 3 Sheridan OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 4 Sheridan OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 5 Sheridan OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 6 Sheridan OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 7 Sheridan OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-843 8 Sheridan OR   157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2016-03-05   
503-843 9 Sheridan OR   936F ASTOUND BROADBAND, LLC - OR 672   2009-07-20   
503-844 A Beaverton OR HLBOORXBDS1  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-845 A Mount Angel OR MTANORXADS0  2386 MT. ANGEL TEL. CO. 672      
503-846 A Beaverton OR HLBOORXBDS1  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-847 A Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-847 0 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2009-01-10   
503-847 1 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2009-01-10   
503-847 2 Portland OR   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2009-04-02   
503-847 3 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2009-04-11   
503-847 4 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2009-04-11   
503-847 5 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2009-04-11   
503-847 6 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2009-04-11   
503-847 7 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2009-04-11   
503-847 8 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2009-04-11   
503-847 9 Portland OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2010-08-12   
503-848 A Beaverton OR BVTNORXBPS4  517K ZIPLY FIBER PACIFIC, LLC DBA ZIPLY FIBER 672      
503-849 A Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-849 0 Portland OR   6529 T-MOBILE USA, INC. 672      
503-849 1 Portland OR   6529 T-MOBILE USA, INC. 672      
503-849 2 Portland OR   6529 T-MOBILE USA, INC. 672      
503-849 3 Portland OR   6529 T-MOBILE USA, INC. 672      
503-849 4 Portland OR   6529 T-MOBILE USA, INC. 672      
503-849 5 Portland OR   6529 T-MOBILE USA, INC. 672      
503-849 6 Portland OR   6529 T-MOBILE USA, INC. 672      
503-849 7 Portland OR   6529 T-MOBILE USA, INC. 672      
503-849 8 Portland OR   6529 T-MOBILE USA, INC. 672      
503-849 9 Portland OR   6529 T-MOBILE USA, INC. 672      
503-850 A Clackamas OR PTLEORXMAMD  7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
503-850 0 Clackamas OR   750E ONVOY, LLC - OR 672   2014-09-27   
503-850 1 Clackamas OR   7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
503-850 2 Clackamas OR   750E ONVOY, LLC - OR 672   2014-09-27   
503-850 3 Clackamas OR   7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
503-850 4 Clackamas OR   318J COMCAST IP PHONE, LLC 672   2010-04-20   
503-850 5 Clackamas OR   7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
503-850 6 Clackamas OR   318J COMCAST IP PHONE, LLC 672   2014-06-02   
503-850 7 Clackamas OR   750E ONVOY, LLC - OR 672   2012-04-25   
503-850 8 Clackamas OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2014-10-20   
503-850 9 Clackamas OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2015-05-15   
503-851 A Salem OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-852 A Carlton OR CRTOORXARS0  4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-852 0 Carlton OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-852 1 Carlton OR   076F BANDWIDTH.COM CLEC, LLC - OR 672   2008-11-29   
503-852 2 Carlton OR   750E ONVOY, LLC - OR 672   2019-11-08   
503-852 3 Carlton OR   318J COMCAST IP PHONE, LLC 672   2006-05-07   
503-852 4 Carlton OR   3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2019-06-02   
503-852 5 Carlton OR   750E ONVOY, LLC - OR 672   2018-12-06   
503-852 6 Carlton OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-852 7 Carlton OR   4520 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - OR 672      
503-852 8 Carlton OR   508J CENTURYLINK COMMUNICATIONS, LLC 672   2013-11-27   
503-852 9 Carlton OR   750E ONVOY, LLC - OR 672   2019-11-08   
503-853 A Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-853 0 Portland OR   6529 T-MOBILE USA, INC. 672   2006-04-18   
503-853 1 Portland OR   6529 T-MOBILE USA, INC. 672   2006-04-18   
503-853 2 Portland OR   6529 T-MOBILE USA, INC. 672   2006-04-18   
503-853 3 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-06-22   
503-853 4 Portland OR   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-06-22   
503-853 5 Portland OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2006-04-17   
503-853 6 Portland OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2006-04-17   
503-853 7 Portland OR   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2006-12-31   
503-853 8 Portland OR   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2006-12-31   
503-853 9 Portland OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2006-04-17   
503-854 A Detroit OR DTRTORXARS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-854 0 Detroit OR   750E ONVOY, LLC - OR 672   2012-12-17   
503-854 1 Detroit OR   750E ONVOY, LLC - OR 672   2014-01-02   
503-854 2 Detroit OR   647F ELTOPIA COMMUNICATIONS LLC - OR 672   2010-07-17   
503-854 3 Detroit OR   4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-854 4 Detroit OR   750E ONVOY, LLC - OR 672   2012-12-17   
503-854 5 Detroit OR   750E ONVOY, LLC - OR 672   2014-01-02   
503-854 6 Detroit OR   750E ONVOY, LLC - OR 672   2010-12-20   
503-854 7 Detroit OR   750E ONVOY, LLC - OR 672   2007-04-15   
503-854 8 Detroit OR   508J CENTURYLINK COMMUNICATIONS, LLC 672   2014-02-17   
503-854 9 Detroit OR   750E ONVOY, LLC - OR 672   2017-11-03   

<< 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: LES.NET

Like this site? We accept donations via PayPal.