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: GDRPMIBLDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
616-233 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-234 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-235 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-242 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-336 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-356 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-391 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-451 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-454 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-456 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-458 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-459 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-486 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-632 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-643 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-653 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-685 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348   2007-08-02   
616-732 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-742 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-752 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-771 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-774 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-776 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-840 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      
616-913 A Grand Rapids MI 9323 AMERITECH MICHIGAN 348      

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

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