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.

OCN: 821C INTRADO COMMUNICATIONS, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
248-801 A West Bloomfield MI   340      
248-801 9 West Bloomfield MI   340   2015-01-30   
248-847 2 West Bloomfield MI   340   2016-08-20   
248-970 8 West Bloomfield MI   340   2019-10-31   
269-744 A Kalamazoo MI BNHRMICCXMD  348      
269-744 9 Kalamazoo MI   348      
517-289 A Lansing MI   346   2020-05-22   
517-289 0 Lansing MI   346   2020-05-22   
517-289 1 Lansing MI   346   2020-05-22   
517-289 8 Lansing MI   346   2020-05-22   
517-289 9 Lansing MI   346   2020-05-22   
616-290 A Grand Rapids MI   348   2020-05-17   
616-290 0 Grand Rapids MI   348   2020-05-17   
616-290 1 Grand Rapids MI   348   2020-05-17   
616-290 8 Grand Rapids MI   348   2020-05-17   
616-290 9 Grand Rapids MI   348   2020-05-17   
989-320 A Saginaw MI   344   2020-05-22   
989-320 0 Saginaw MI   344   2020-05-22   
989-320 1 Saginaw MI   344   2020-05-22   
989-320 8 Saginaw MI   344   2020-05-22   
989-320 9 Saginaw MI   344   2020-05-22   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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