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: 717 [Rate centres in NPA 717] [Dial plan for NPA 717]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
717-666 A Lancaster PA HRBGPAHAXCY  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226      
717-666 0 Lancaster PA HRBGPAHAXCY  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226      
717-666 1 Lancaster PA YORKPAXMWMD  7309 TELEPORT COMMUNICATIONS AMERICA, LLC - PA 226      
717-666 2 Lancaster PA HRBGPAHAXVY  6846 D&E/OMNIPOINT WIREL JOINT VENT LP DBA PCS ONE 226      
717-666 3 Lancaster PA HRBGPAHAXCY  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226      
717-666 4 Lancaster PA HRBGPAHA9MD  5562 METROPCS, INC. 226      
717-666 5 Lancaster PA PXTGPALRGT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 226      
717-666 6 Lancaster PA   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 226      
717-666 7 Lancaster PA HRBGPAHAXAZ  002F BANDWIDTH.COM CLEC, LLC - PA 226      
717-666 8 Lancaster PA HRBGPAHA9MD  5562 METROPCS, INC. 226      
717-666 9 Lancaster PA HRBGPAHA9MD  5562 METROPCS, INC. 226      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.