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: SGNWMIACHMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
989-294 6 Midland MI 490J DISH WIRELESS, LLC 344   2022-05-21   
989-320 5 Saginaw MI 490J DISH WIRELESS, LLC 344   2024-11-03   
989-320 6 Saginaw MI 490J DISH WIRELESS, LLC 344   2025-01-31   
989-451 A Saginaw MI 490J DISH WIRELESS, LLC 344      
989-451 8 Saginaw MI 490J DISH WIRELESS, LLC 344   2022-06-11   
989-534 0 St Johns MI 490J DISH WIRELESS, LLC 344   2023-05-06   
989-585 4 Brant MI 490J DISH WIRELESS, LLC 344   2024-01-11   
989-587 8 Westphalia MI 490J DISH WIRELESS, LLC 344   2022-08-28   
989-613 5 Sheridan MI 490J DISH WIRELESS, LLC 344   2024-04-27   
989-795 8 Fostoria MI 490J DISH WIRELESS, LLC 344   2023-12-05   
989-828 1 Shepherd MI 490J DISH WIRELESS, LLC 344   2023-02-26   
989-932 8 Durand MI 490J DISH WIRELESS, LLC 344   2023-02-27   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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