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: MONRMINERSA

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
734-289 A Monroe MI 9323 MICHIGAN BELL TEL CO 340      
734-289 0 Monroe MI 9323 MICHIGAN BELL TEL CO 340      
734-289 1 Monroe MI 9323 MICHIGAN BELL TEL CO 340      
734-289 2 Monroe MI 9323 MICHIGAN BELL TEL CO 340      
734-289 3 Monroe MI 9323 MICHIGAN BELL TEL CO 340      
734-289 4 Monroe MI 9323 MICHIGAN BELL TEL CO 340      
734-289 5 Monroe MI 9323 MICHIGAN BELL TEL CO 340      
734-289 6 Monroe MI 9323 MICHIGAN BELL TEL CO 340      
734-289 7 Monroe MI 9323 MICHIGAN BELL TEL CO 340      
734-289 8 Monroe MI 9323 MICHIGAN BELL TEL CO 340      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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