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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
503-861 3 Warrenton OR WRTNOR64DS0  9638 QWEST CORPORATION 672      
503-861 4 Warrenton OR WRTNOR64DS0  9638 QWEST CORPORATION 672      
503-861 5 Warrenton OR WRTNOR64DS0  9638 QWEST CORPORATION 672      
503-861 6 Warrenton OR WRTNOR64DS0  9638 QWEST CORPORATION 672      
503-861 7 Warrenton OR WRTNOR64DS0  9638 QWEST CORPORATION 672      
503-861 8 Warrenton OR   792K CHARTER IP ENABLED SERVICES, LLC 672   2007-07-18   
503-861 9 Warrenton OR WRTNOR64DS0  9638 QWEST CORPORATION 672      
503-862 A Sherwood OR PTLEORXMAMD  7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
503-862 1 Sherwood OR PTLEORXMAMD  7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
503-862 2 Sherwood OR PTLGORIA7MD  3234 LEVEL 3 COMMUNICATIONS, LLC - OR 672   2012-12-22   
503-862 3 Sherwood OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2014-12-12   
503-862 4 Sherwood OR PTLEORXMAMD  7537 LEVEL 3 TELECOM OF OREGON, LLC - OR 672      
503-862 5 Sherwood OR PTLDOR13XRX  829J PAETEC ITEL, LLC 672   2010-11-18   
503-862 6 Sherwood OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2014-12-12   
503-862 7 Sherwood OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2012-06-22   
503-862 8 Sherwood OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2012-04-01   
503-862 9 Sherwood OR PTLDOR69UMD  076F BANDWIDTH.COM CLEC, LLC - OR 672   2012-10-20   
503-863 A Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-863 0 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-12-01   
503-863 1 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2006-12-15   
503-863 2 Portland OR PTLDOR69X9X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2007-08-06   
503-863 3 Portland OR PTLDOR69X9X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2007-08-06   
503-863 4 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2007-01-11   
503-863 5 Portland OR PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2007-01-15   
503-863 6 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-863 7 Portland OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2007-09-05   
503-863 8 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-02-09   
503-863 9 Portland OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2007-01-19   
503-864 A Dayton OR DYTNORXADS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-864 0 Dayton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2017-12-14   
503-864 1 Dayton OR DYTNORXADS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-864 2 Dayton OR DYTNORXADS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-864 3 Dayton OR DYTNORXADS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-864 4 Dayton OR DYTNORXADS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-864 5 Dayton OR THDLORXABMD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2013-06-13   
503-864 6 Dayton OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2007-05-28   
503-864 7 Dayton OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2003-02-08   
503-864 8 Dayton OR DYTNORXADS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-864 9 Dayton OR DYTNORXADS0  4323 ZIPLY FIBER NORTHWEST, LLC DBA ZIPLY FIBER 672      
503-865 A Portland OR PTLDOR69DS0  9638 QWEST CORPORATION 672      
503-866 A Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-866 0 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-866 1 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2002-12-14   
503-866 2 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2002-12-14   
503-866 3 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2002-12-14   
503-866 4 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2002-12-14   
503-866 5 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672      
503-866 6 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2003-02-04   
503-866 7 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2003-02-04   
503-866 8 Portland OR BENDOR248MD  6010 NEW CINGULAR WIRELESS PCS, LLC 672   2003-02-04   

<< 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 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 >>

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.