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: 320

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
223-320 A Gratz PA LWBYPAXL1MD  547E ONVOY, LLC - PA 226      
223-320 0 Gratz PA   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 226   2024-09-22   
223-320 1 Gratz PA   624H ONVOY SPECTRUM, LLC 226   2024-10-25   
223-320 3 Gratz PA   547E ONVOY, LLC - PA 226   2023-10-19   

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

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