Local Calling Guide

Area code/prefix search

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Montgomery, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
517-296 A MTGMMIXIRS0  4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-296 0 MTGMMIXIRS0  4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-296 1 MTGMMIXIRS0  4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-296 2 LNNGMIMNX8Z  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 346   2016-06-16   
517-296 3 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2021-06-18   
517-296 4 MTGMMIXIRS0  4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-296 5 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2021-07-11   
517-296 6 LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346   2018-10-12   
517-296 7   543C ONVOY, LLCV - MI 346   2022-03-04   
517-296 8 LNNGMIMNXOY  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 346   2017-07-08   
517-296 9 MTGMMIXIRS0  4417 FRONTIER COMMUNICATIONS OF MICHIGAN, INC. 346      
517-792 A MDTPMICODS0  3535 ACD TELECOM, INC. - MI 346      

Last updated: Fri, 13 May 2022 22:16:13 UTC

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