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: SGNWMIFADS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
989-298 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-583 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-752 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-753 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-754 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-755 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-757 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-758 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-759 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-771 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-776 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-830 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-870 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-890 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      
989-907 A Saginaw MI 9323 MICHIGAN BELL TEL CO 344      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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