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

NXX: 385

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
223-385 A Columbia PA   6846 D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 226   2026-03-07   
223-385 6 Columbia PA   6846 D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 226   2026-03-07   
223-385 7 Columbia PA   6846 D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 226   2026-03-07   
223-385 8 Columbia PA   6846 D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 226   2026-03-07   
223-385 9 Columbia PA   6846 D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 226   2026-03-07   

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

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