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: FLNTMINEDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
810-250 A Flint MI 9323 MICHIGAN BELL TEL CO 340      
810-250 0 Flint MI 9323 MICHIGAN BELL TEL CO 340      
810-250 2 Flint MI 9323 MICHIGAN BELL TEL CO 340      
810-250 6 Flint MI 9323 MICHIGAN BELL TEL CO 340      
810-250 9 Flint MI 9323 MICHIGAN BELL TEL CO 340      
810-640 A Clio-Mount Morris MI 9323 MICHIGAN BELL TEL CO 340      
810-640 0 Clio-Mount Morris MI 9323 MICHIGAN BELL TEL CO 340      
810-640 1 Clio-Mount Morris MI 9323 MICHIGAN BELL TEL CO 340      
810-640 2 Clio-Mount Morris MI 9323 MICHIGAN BELL TEL CO 340      
810-640 3 Clio-Mount Morris MI 9323 MICHIGAN BELL TEL CO 340      
810-736 A Flint MI 9323 MICHIGAN BELL TEL CO 340      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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