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-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
570-222 A Clifford (Susquehanna) PA CLIFPAXCDS0  232      
570-434 A Harford PA HAFDPAXHDS0  232      
570-448 A Pleasant Mount PA PLMTPAXPDS0  232      
570-465 A New Milford PA NMFRPAXNDS0  232      
570-679 A Union Dale PA UNDLPAXUDS0  232      
570-727 A Thompson PA THSNPAXTDS0  232      
570-756 A Jackson (Susquehanna) PA JKSNPAXJDS0  232      
570-785 A Forest City PA FRCYPAXFDS0  232      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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