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]

NXX: 251

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
458-251 A Ontario OR BOISIDMAXIX  750E ONVOY, LLC - OR 652      
458-251 0 Ontario OR   6529 T-MOBILE USA, INC. 652   2022-10-08   
458-251 1 Ontario OR   624H ONVOY SPECTRUM, LLC 652   2021-09-26   
458-251 2 Ontario OR   5562 METROPCS, INC. 652   2020-05-15   
458-251 3 Ontario OR   750E ONVOY, LLC - OR 652   2020-09-06   
458-251 4 Ontario OR   750E ONVOY, LLC - OR 652   2020-03-28   
458-251 5 Ontario OR   750E ONVOY, LLC - OR 652   2020-03-28   
458-251 6 Ontario OR   508J CENTURYLINK COMMUNICATIONS, LLC 652   2020-03-29   
458-251 7 Ontario OR   6010 NEW CINGULAR WIRELESS PCS, LLC 652   2020-05-21   
458-251 8 Ontario OR   6010 NEW CINGULAR WIRELESS PCS, LLC 652   2020-05-21   
458-251 9 Ontario OR   6010 NEW CINGULAR WIRELESS PCS, LLC 652   2020-03-29   

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

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