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: JCSNMIMNDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-205 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-205 0 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-205 1 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-205 2 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-205 3 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-205 4 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-205 5 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-205 6 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-205 7 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-205 8 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-205 9 Jackson MI 9323 MICHIGAN BELL TEL CO 346   2014-06-01   
517-768 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-780 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-782 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-783 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-784 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-787 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-788 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-789 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 0 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 1 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 2 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 4 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 5 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 6 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 7 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 8 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-796 9 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-817 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-817 0 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-817 1 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-817 2 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-817 3 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-817 4 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-817 7 Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-840 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      
517-841 A Jackson MI 9323 MICHIGAN BELL TEL CO 346      

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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