Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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OCN: 516C AT&T CORP.

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
989-564 7 Linwood MI   344   2011-02-03   
989-569 9 Oscoda MI   344   2011-09-30   
989-575 A Akron MI SGNWMIATSMD  344   2010-02-04   
989-575 7 Akron MI   344   2010-02-04   
989-625 5 Freeland MI   344   2011-09-30   
989-630 9 Harrison MI   344   2011-09-30   
989-660 3 Mayville MI   344   2011-09-30   
989-674 5 Unionville MI   344   2011-09-30   
989-704 5 Sebewaing MI   344   2011-09-30   
989-726 5 West Branch MI   344   2014-03-07   
989-750 A Midland MI SGNWMIATRMD  344   2006-06-30   
989-750 7 Midland MI   344   2006-06-30   
989-776 3 Saginaw MI   344   2016-08-19   
989-850 5 Gagetown MI   344   2012-01-27   
989-868 5 Reese MI   344   2011-09-30   

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Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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