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: 604

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
717-604 A Marietta PA HRBGPAHAXTX  318J COMCAST IP PHONE, LLC 226      
717-604 0 Marietta PA   3806 CORE COMMUNICATIONS, INC. - PA 226   2009-03-24   
717-604 1 Marietta PA   318J COMCAST IP PHONE, LLC 226   2006-08-20   
717-604 2 Marietta PA   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 226   2014-03-02   
717-604 3 Marietta PA   002F BANDWIDTH.COM CLEC, LLC - PA 226   2015-02-16   
717-604 4 Marietta PA   318J COMCAST IP PHONE, LLC 226   2014-03-10   
717-604 7 Marietta PA   508J CENTURYLINK COMMUNICATIONS, LLC 226   2014-12-23   
717-604 9 Marietta PA   547E ONVOY, LLC - PA 226   2018-10-20   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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