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: 971 [Rate centres in NPA 971] [Dial plan for NPA 971]

NXX: 757

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
971-757 A St Helens OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
971-757 0 St Helens OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2016-08-07   
971-757 1 St Helens OR PTLDORWAXKY  936F ASTOUND BROADBAND, LLC - OR 672   2017-12-02   
971-757 2 St Helens OR PTLDOR13DS4  157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2018-03-16   
971-757 3 St Helens OR PTLDOR13DS4  157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2018-12-27   
971-757 4 St Helens OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2019-06-22   
971-757 5 St Helens OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2017-10-07   
971-757 6 St Helens OR PTLJORIY0MD  6529 T-MOBILE USA, INC. 672   2019-08-25   
971-757 7 St Helens OR PTLDOR13X6X  158H INVOXIO INCORPORATED 672   2018-09-29   
971-757 8 St Helens OR PTLJORIY0MD  5562 METROPCS, INC. 672   2019-06-12   
971-757 9 St Helens OR PTLDOR13UMD  073H TELNYX LLC 672   2019-09-08   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.