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.

Switch: DNVRPAXDRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
717-335 A Denver PA 0165 WINDSTREAM D&E, INC. 226      
717-335 0 Denver PA 0165 WINDSTREAM D&E, INC. 226      
717-335 2 Denver PA 0165 WINDSTREAM D&E, INC. 226      
717-335 3 Denver PA 0165 WINDSTREAM D&E, INC. 226      
717-335 4 Denver PA 0165 WINDSTREAM D&E, INC. 226      
717-335 7 Denver PA 0165 WINDSTREAM D&E, INC. 226      
717-336 A Denver PA 0165 WINDSTREAM D&E, INC. 226      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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