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: 458 [Rate centres in NPA 458] [Dial plan for NPA 458]

NXX: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
458-300 A Hermiston OR PTLDOR13X6X  158H INVOXIO INCORPORATED 672      
458-300 0 Hermiston OR PTLDOR13X6X  158H INVOXIO INCORPORATED 672   2018-12-16   
458-300 1 Hermiston OR PTLDOR13UMD  073H TELNYX LLC 672   2019-07-03   
458-300 2 Hermiston OR PTLDOR13DS4  157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2019-10-27   
458-300 3 Hermiston OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2019-04-01   
458-300 4 Hermiston OR   750E ONVOY, LLC - OR 672   2024-03-08   
458-300 5 Hermiston OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2019-09-21   
458-300 6 Hermiston OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2020-04-15   
458-300 8 Hermiston OR PTLDORWNAMD  5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672   2019-11-18   
458-300 9 Hermiston OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2019-01-24   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.