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.

NPA: 989 [Rate centres in NPA 989] [Dial plan for NPA 989]

NXX: 891

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-891 A Bay City MI BYCYMIMNDS0  9323 MICHIGAN BELL TEL CO 344      
989-891 0 Bay City MI   9323 MICHIGAN BELL TEL CO 344      
989-891 1 Bay City MI   9323 MICHIGAN BELL TEL CO 344      
989-891 2 Bay City MI   9323 MICHIGAN BELL TEL CO 344      
989-891 3 Bay City MI   9323 MICHIGAN BELL TEL CO 344      
989-891 4 Bay City MI   9323 MICHIGAN BELL TEL CO 344      
989-891 5 Bay City MI   9323 MICHIGAN BELL TEL CO 344      
989-891 6 Bay City MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2007-01-04   
989-891 7 Bay City MI   6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 344   2006-09-14   
989-891 8 Bay City MI   9323 MICHIGAN BELL TEL CO 344      
989-891 9 Bay City MI   9323 MICHIGAN BELL TEL CO 344      

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.