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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: GDRPMIBLXMX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
231-534 A Traverse City MI 7421 AT&T LOCAL 348      
269-216 A Kalamazoo MI 7421 AT&T LOCAL 348      
269-591 A Niles MI 7421 AT&T LOCAL 348      
269-757 A Benton Harbor MI 7421 AT&T LOCAL 348      
616-802 A Grand Rapids MI 7421 AT&T LOCAL 348      
616-834 A Holland MI 7421 AT&T LOCAL 348      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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