Local Calling Guide

Area code/prefix search

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OCN: 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
989-349 7 Birch Run MI   344   2014-02-14   
989-364 6 Saginaw MI   344   2025-01-20   
989-368 A Harrison MI SGNWMIFAXNX  344      
989-368 6 Harrison MI   344   2012-05-13   
989-397 9 Saginaw MI   344      
989-403 6 St Johns MI   344   2015-08-17   
989-417 6 East Tawas MI   344   2024-02-09   
989-444 6 Mount Pleasant MI   344   2013-03-14   
989-445 6 Chesaning MI   344   2016-10-10   
989-459 4 Bay City MI   344   2017-04-07   
989-461 A Gaines MI SFLDMIBVDS0  340      
989-461 9 Gaines MI   340      
989-471 0 Ossineke MI   344   2021-04-19   
989-474 0 Rogers City MI   344   2023-06-12   
989-476 5 Port Hope MI   344   2017-10-11   
989-480 7 Frankenmuth MI   344   2009-01-03   
989-486 6 Midland MI   344   2008-01-19   
989-538 6 Houghton Lake MI   344   2014-04-16   
989-558 6 Saginaw MI   344   2019-06-20   
989-576 6 Alma MI   344   2012-06-18   
989-582 6 Kinde MI   344   2017-12-15   
989-623 2 Bad Axe MI   344   2016-02-05   
989-625 7 Freeland MI   344   2008-05-26   
989-634 4 Bancroft MI   344   2015-11-27   
989-658 9 Ubly MI   344   2016-08-05   
989-666 9 Owosso MI   344   2013-08-06   
989-687 8 Sanford MI   344   2020-01-10   
989-712 3 Harbor Beach MI   344   2016-04-15   
989-717 4 Saginaw MI   344   2015-10-23   
989-724 0 Harrisville MI   344   2021-04-19   
989-726 7 West Branch MI   344   2008-08-11   
989-746 7 Saginaw MI   344   2012-11-01   
989-748 6 Gaylord MI   344   2012-03-29   
989-768 3 Port Austin MI   344   2018-10-26   
989-789 6 Marlette MI   344   2017-10-11   
989-795 6 Fostoria MI   344   2021-08-09   
989-802 6 Clare MI   344   2009-08-24   
989-818 6 Lakeview MI   344   2020-11-13   
989-822 6 Barryton MI   344   2020-11-13   
989-857 6 Remus MI   344   2020-11-14   
989-884 6 Alpena MI   344   2013-05-15   
989-889 7 Grayling MI   344   2013-08-06   
989-898 6 Midland MI   344   2018-07-23   
989-917 6 Minden City MI   344   2016-03-18   
989-934 1 Rose City MI   344   2020-03-25   

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

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