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: 318

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
458-318 A Hermiston OR   939H COMMIO, LLC 672   2024-04-20   
458-318 0 Hermiston OR   939H COMMIO, LLC 672      
458-318 1 Hermiston OR   939H COMMIO, LLC 672      
458-318 2 Hermiston OR   6349 UNITED STATES CELLULAR - OR 672      
458-318 3 Hermiston OR   750E ONVOY, LLC - OR 672      
458-318 4 Hermiston OR   750E ONVOY, LLC - OR 672      
458-318 8 Hermiston OR   5820 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - OR 672      
458-318 9 Hermiston OR   750E ONVOY, LLC - OR 672      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.