Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 458 [Rate centres in NPA 458] [Dial plan for NPA 458]

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
458-999 6 Umatilla OR THDLORXADMD  7531 TELEPORT COMMUNICATIONS AMERICA, LLC - OR 672   2021-11-02   
458-999 7 Umatilla OR PTLDOR13DS4  157F PEERLESS NETWORK OF OREGON, LLC - OR 672   2021-10-18   
458-999 8 Umatilla OR PTLDOR13VMD  939H COMMIO, LLC 672   2022-11-21   
458-999 9 Umatilla OR PTLDORWADS2  750E ONVOY, LLC - OR 672   2017-11-04   

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Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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