Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 223 [Rate centres in NPA 223] [Dial plan for NPA 223]

NXX: 315

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
223-315 A Denver PA EPHRPAXE4MD  547E ONVOY, LLC - PA 226      
223-315 0 Denver PA EPHRPAXEAMD  624H ONVOY SPECTRUM, LLC 226   2024-03-02   
223-315 1 Denver PA EPHRPAXE4MD  547E ONVOY, LLC - PA 226   2024-03-08   
223-315 2 Denver PA EPHRPAXE4MD  547E ONVOY, LLC - PA 226   2023-08-11   
223-315 9 Denver PA EPHRPAXE4MD  547E ONVOY, LLC - PA 226   2024-04-26   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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