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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Switch: ALFAPAALRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
717-543 A Lewistown (Mifflin) PA 9208 VERIZON PENNSYLVANIA, INC. 226      
717-543 5 Lewistown (Mifflin) PA 9208 VERIZON PENNSYLVANIA, INC. 226      
717-543 6 Lewistown (Mifflin) PA 9208 VERIZON PENNSYLVANIA, INC. 226      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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