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: 256

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
717-256 A Hummelstown PA   829J PAETEC ITEL, LLC 226   2025-03-04   
717-256 0 Hummelstown PA   829J PAETEC ITEL, LLC 226      
717-256 1 Hummelstown PA HRBGPAHAXAZ  002F BANDWIDTH.COM CLEC, LLC - PA 226   2008-12-19   
717-256 2 Hummelstown PA HRBGPAHAXAZ  002F BANDWIDTH.COM CLEC, LLC - PA 226   2014-07-14   
717-256 3 Hummelstown PA HRBGPAHAXAZ  002F BANDWIDTH.COM CLEC, LLC - PA 226   2015-02-15   
717-256 4 Hummelstown PA HRBGPAHAXAZ  002F BANDWIDTH.COM CLEC, LLC - PA 226   2016-07-23   
717-256 5 Hummelstown PA HRBGPAHAXSX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 226   2006-09-29   
717-256 6 Hummelstown PA HRBGPAHAXSX  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 226   2006-09-29   
717-256 7 Hummelstown PA HRBGPAHAX9Z  547E ONVOY, LLC - PA 226   2006-09-29   
717-256 8 Hummelstown PA HRBGPAHAX9Z  547E ONVOY, LLC - PA 226   2006-09-29   
717-256 9 Hummelstown PA HRBGPAHAXTX  318J COMCAST IP PHONE, LLC 226   2013-12-08   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.