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: 387

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
223-387 A Lancaster PA   547E ONVOY, LLC - PA 226   2026-03-06   
223-387 0 Lancaster PA   547E ONVOY, LLC - PA 226   2026-03-06   

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

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