Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 223 [Rate centres in NPA 223] [Dial plan for NPA 223]

NXX: 372

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
223-372 A York PA   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 226   2025-06-26   
223-372 0 York PA   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 226   2025-06-26   
223-372 1 York PA   6392 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - PA 226   2025-06-26   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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