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: MCHCMIMNRSA

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-748 9 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 0 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 1 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 2 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 3 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 4 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 5 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 6 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 7 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-764 9 Jackson MI 9323 MICHIGAN BELL TEL CO 346      

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

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