Local Calling Guide

Area code/prefix search

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Unionville, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
989-674 A UNVLMIMNRS0  9323 MICHIGAN BELL TEL CO 344      
989-674 2 UNVLMIMNRS0  9323 MICHIGAN BELL TEL CO 344      
989-674 3 SGNWMIECXQX  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344   2006-11-08   
989-674 4 SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2012-10-13   
989-674 5 SGNWMIATX0X  516C AT&T CORP. 344   2011-09-30   
989-674 6 SGNWMIFAXCY  508J CENTURYLINK COMMUNICATIONS, LLC 344   2015-05-07   
989-674 7 SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2013-04-05   
989-674 8 UNVLMIMNRS0  9323 MICHIGAN BELL TEL CO 344      
989-918 A UNVLMIMNRS0  9323 MICHIGAN BELL TEL CO 344      
989-918 0 UNVLMIMNRS0  9323 MICHIGAN BELL TEL CO 344      
989-918 1 SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2016-03-28   
989-918 2 SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2016-03-28   
989-918 3 SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2022-02-12   
989-918 4 SGNWMIFAXWY  624H ONVOY SPECTRUM, LLC 344   2024-08-11   
989-918 6 SGNWMIACDS1  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 344   2016-04-02   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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