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.

Portland, OR

<< 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
503-736 A PTLDOR13DS3  9638 QWEST CORPORATION 672      
503-737 A PTLDOR14DS0  9638 QWEST CORPORATION 672      
503-737 0   9638 QWEST CORPORATION 672      
503-737 1   9638 QWEST CORPORATION 672      
503-737 2   9638 QWEST CORPORATION 672      
503-737 3   9638 QWEST CORPORATION 672      
503-737 4   6529 T-MOBILE USA, INC. 672   2004-12-24   
503-737 5   6529 T-MOBILE USA, INC. 672   2004-12-24   
503-737 6   9638 QWEST CORPORATION 672      
503-737 7   6529 T-MOBILE USA, INC. 672   2004-12-24   
503-737 8   6529 T-MOBILE USA, INC. 672   2004-12-24   
503-737 9   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2004-11-18   
503-740 A PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-745 A PTLDOR69X9X  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672      
503-750 A PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 A PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-752 0   6529 T-MOBILE USA, INC. 672      
503-752 1   6529 T-MOBILE USA, INC. 672      
503-752 2   6529 T-MOBILE USA, INC. 672      
503-752 3   6529 T-MOBILE USA, INC. 672      
503-752 4   6529 T-MOBILE USA, INC. 672      
503-752 5   6529 T-MOBILE USA, INC. 672      
503-752 6   6529 T-MOBILE USA, INC. 672      
503-752 7   6529 T-MOBILE USA, INC. 672      
503-752 8   6529 T-MOBILE USA, INC. 672      
503-752 9   6529 T-MOBILE USA, INC. 672      
503-753 A PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-753 0   6529 T-MOBILE USA, INC. 672      
503-753 1   6529 T-MOBILE USA, INC. 672      
503-753 2   6529 T-MOBILE USA, INC. 672      
503-753 3   6529 T-MOBILE USA, INC. 672      
503-753 4   6529 T-MOBILE USA, INC. 672      
503-753 5   6529 T-MOBILE USA, INC. 672      
503-753 6   6529 T-MOBILE USA, INC. 672      
503-753 7   6529 T-MOBILE USA, INC. 672      
503-753 8   6529 T-MOBILE USA, INC. 672      
503-753 9   6529 T-MOBILE USA, INC. 672      
503-754 A PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-754 0   6529 T-MOBILE USA, INC. 672      
503-754 1   6529 T-MOBILE USA, INC. 672      
503-754 2   6529 T-MOBILE USA, INC. 672      
503-754 3   6529 T-MOBILE USA, INC. 672      
503-754 4   6529 T-MOBILE USA, INC. 672      
503-754 5   6529 T-MOBILE USA, INC. 672      
503-754 6   6529 T-MOBILE USA, INC. 672      
503-754 7   6529 T-MOBILE USA, INC. 672      
503-754 8   6529 T-MOBILE USA, INC. 672      
503-754 9   6529 T-MOBILE USA, INC. 672      
503-756 A PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-756 0   5562 METROPCS, INC. 672      
503-756 1   5562 METROPCS, INC. 672      
503-756 2   5562 METROPCS, INC. 672      
503-756 3   5562 METROPCS, INC. 672      
503-756 4   5562 METROPCS, INC. 672      
503-756 5   5562 METROPCS, INC. 672      
503-756 6   5562 METROPCS, INC. 672      
503-756 7   5562 METROPCS, INC. 672      
503-756 8   5562 METROPCS, INC. 672      
503-756 9   6529 T-MOBILE USA, INC. 672      
503-757 A PTLJORIY0MD  6529 T-MOBILE USA, INC. 672      
503-757 0   5562 METROPCS, INC. 672      
503-757 1   5562 METROPCS, INC. 672      
503-757 2   5562 METROPCS, INC. 672      
503-757 3   5562 METROPCS, INC. 672      
503-757 4   5562 METROPCS, INC. 672      
503-757 5   5562 METROPCS, INC. 672      
503-757 6   5562 METROPCS, INC. 672      
503-757 7   5562 METROPCS, INC. 672      
503-757 8   5562 METROPCS, INC. 672      
503-757 9   6529 T-MOBILE USA, INC. 672      
503-758 A PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
503-758 0   6529 T-MOBILE USA, INC. 672   2005-10-10   
503-758 1   6529 T-MOBILE USA, INC. 672   2005-10-10   
503-758 2   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-10-14   
503-758 3   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-10-14   
503-758 4   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-10-14   
503-758 5   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-10-07   
503-758 6   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-10-07   
503-758 7   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-10-07   
503-758 8   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-10-07   
503-758 9   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2005-10-07   
503-760 A PTLDOR08DS0  9638 QWEST CORPORATION 672      
503-761 A PTLDOR08DS0  9638 QWEST CORPORATION 672      
503-762 A PTLDOR08DS0  9638 QWEST CORPORATION 672      
503-764 A PTLEORTEPS0  7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672      
503-764 0   7172 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 672   2005-12-15   
503-764 1   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2005-12-16   
503-764 2   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2005-12-16   
503-764 3   6010 NEW CINGULAR WIRELESS PCS, LLC 672   2024-07-10   
503-764 4   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 672   2005-12-16   
503-764 5   6529 T-MOBILE USA, INC. 672   2005-12-30   
503-764 6   5562 METROPCS, INC. 672   2005-12-23   
503-764 7   6529 T-MOBILE USA, INC. 672   2005-12-30   
503-764 8   6529 T-MOBILE USA, INC. 672   2005-12-30   
503-764 9   318J COMCAST IP PHONE, LLC 672   2005-12-22   
503-768 A PTLDOR17DS0  9638 QWEST CORPORATION 672      
503-771 A PTLDOR18DS0  9638 QWEST CORPORATION 672      
503-772 A PTLDOR18DS0  9638 QWEST CORPORATION 672      
503-774 A PTLDOR18DS0  9638 QWEST CORPORATION 672      
503-775 A PTLDOR18DS0  9638 QWEST CORPORATION 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 >>

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.