Local Calling Guide

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Muhlenburg, PA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
272-633 A SCTNPA01XUX  516J TON80 COMMUNICATIONS, LLC 232      
272-633 1   318J COMCAST IP PHONE, LLC 232   2023-03-26   
272-633 2   547E ONVOY, LLC - PA 232   2023-04-23   
272-633 3   516J TON80 COMMUNICATIONS, LLC 232   2022-03-07   
272-633 4   624H ONVOY SPECTRUM, LLC 232   2023-11-20   
272-633 6   145J TERRA NOVA TELECOM INC. 232   2025-07-19   
570-256 A MHBGPAXMRS0  0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-256 0   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-256 1   547E ONVOY, LLC - PA 232   2021-04-04   
570-256 2   3806 CORE COMMUNICATIONS, INC. - PA 232   2019-03-26   
570-256 3   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-256 4   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-256 5   6921 LIMITLESS MOBILE, LLC 232   2018-01-02   
570-256 6   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-256 7   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-256 8   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-256 9   0161 COMMONWEALTH TELEPHONE COMPANY LLC 232      
570-667 A WLBRPA04GT0  3806 CORE COMMUNICATIONS, INC. - PA 232      
570-667 0   3806 CORE COMMUNICATIONS, INC. - PA 232   2009-05-17   
570-667 1   213C IDT AMERICA, CORP. - PA 232   2010-02-12   
570-667 2   4007 LEVEL 3 COMMUNICATIONS, LLC - PA 232   2015-06-20   
570-667 3   3806 CORE COMMUNICATIONS, INC. - PA 232   2018-06-11   
570-667 4   3806 CORE COMMUNICATIONS, INC. - PA 232   2018-06-11   
570-667 5   3806 CORE COMMUNICATIONS, INC. - PA 232   2018-06-11   
570-667 6   547E ONVOY, LLC - PA 232   2019-12-18   
570-667 7   3806 CORE COMMUNICATIONS, INC. - PA 232   2019-03-26   
570-667 8   508J CENTURYLINK COMMUNICATIONS, LLC 232   2016-02-09   
570-667 9   547E ONVOY, LLC - PA 232   2021-04-04   

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

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