Local Calling Guide

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Bay City, MI

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
989-893 A BYCYMIMNDS0  9323 MICHIGAN BELL TEL CO 344      
989-894 A BYCYMIMNDS0  9323 MICHIGAN BELL TEL CO 344      
989-895 A BYCYMIMNDS0  9323 MICHIGAN BELL TEL CO 344      
989-897 A SGNWMIFAXTY  506J TWILIO INTERNATIONAL, INC. 344      
989-897 0 SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2022-10-07   
989-897 1 SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2024-03-16   
989-897 2 SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2024-03-16   
989-897 6 SGNWMIACDS1  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 344   2024-11-02   
989-897 7 SGNWMIACEMD  516J TON80 COMMUNICATIONS, LLC 344   2022-04-21   
989-897 8 SGNWMIFAXTY  506J TWILIO INTERNATIONAL, INC. 344   2022-03-12   
989-897 9 SGNWMIFAXFY  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 344   2024-03-16   
989-922 A SGNWMIFAXEX  829J PAETEC ITEL, LLC 344      
989-929 A SGNWMIFAXDX  9748 AMERICAN MESSAGING SERVICES, LLC 344      

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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