Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Winn, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
989-866 A MNPLMICFDS2  0737 WINN TEL. CO. 344      
989-866 0   0737 WINN TEL. CO. 344      
989-866 1   0737 WINN TEL. CO. 344      
989-866 2   0737 WINN TEL. CO. 344      
989-866 3   792K CHARTER IP ENABLED SERVICES, LLC 344   2019-09-20   
989-866 4   516J TON80 COMMUNICATIONS, LLC 344   2022-04-03   
989-866 6   0737 WINN TEL. CO. 344      
989-866 7   3535 ACD TELECOM, INC. - MI 344   2011-07-28   
989-866 8   0737 WINN TEL. CO. 344      
989-866 9   0737 WINN TEL. CO. 344      

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

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