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: GDRPMIBL06Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
231-303 A Newaygo MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2011-07-07   
616-414 A Grand Haven MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2010-05-21   
616-432 A Grand Rapids MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2011-05-01   
616-953 A Zeeland MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      

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

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