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: CYTNMIXIPS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-445 A Clayton MI 0672 COMMUNICATIONS CORP. OF MI 340      
517-445 0 Clayton MI 0672 COMMUNICATIONS CORP. OF MI 340      
517-445 1 Clayton MI 0672 COMMUNICATIONS CORP. OF MI 340      
517-445 2 Clayton MI 0672 COMMUNICATIONS CORP. OF MI 340      
517-445 8 Clayton MI 0672 COMMUNICATIONS CORP. OF MI 340      
517-445 9 Clayton MI 0672 COMMUNICATIONS CORP. OF MI 340      

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

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