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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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      
231-324 A Harbor Springs MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
231-417 A Petoskey MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
231-484 A East Jordan MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
231-567 A Muskegon MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
231-672 A Muskegon MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
269-265 A Mendon MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
269-591 A Niles MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
269-903 A Kalamazoo MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
616-389 A Grand Rapids MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
616-414 A Grand Haven MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
616-432 A Grand Rapids MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
616-649 A Grand Rapids MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      
616-684 A Grand Rapids MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348   2024-01-04   
616-953 A Zeeland MI 770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 348      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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