Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 717 [Rate centres in NPA 717] [Dial plan for NPA 717]

NXX: 563

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
717-563 A Delta PA HRBGPAHAXCY  4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226      
717-563 0 Delta PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226      
717-563 1 Delta PA   145J TERRA NOVA TELECOM INC. 226   2024-09-11   
717-563 2 Delta PA   145J TERRA NOVA TELECOM INC. 226   2025-05-07   
717-563 3 Delta PA   145J TERRA NOVA TELECOM INC. 226   2024-02-14   
717-563 4 Delta PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226   2005-04-07   
717-563 5 Delta PA   7434 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - PA 226   2019-11-06   
717-563 6 Delta PA   547E ONVOY, LLC - PA 226   2020-08-16   
717-563 7 Delta PA   547E ONVOY, LLC - PA 226   2019-09-19   
717-563 8 Delta PA   547E ONVOY, LLC - PA 226   2019-09-19   
717-563 9 Delta PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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