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: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
223-321 A Duncannon PA HRBGPAHAX9Z  547E ONVOY, LLC - PA 226      
223-321 2 Duncannon PA HRBGPAHAX9Z  547E ONVOY, LLC - PA 226   2023-08-17   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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