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: 855

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-855 A Muir MI MUIRMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-855 2 Muir MI MUIRMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-855 3 Muir MI MUIRMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-855 4 Muir MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2004-12-31   
989-855 5 Muir MI SGNWMIATUMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 344   2009-09-26   
989-855 6 Muir MI SGNWMIFAXJX  991E BANDWIDTH.COM CLEC, LLC - MI 344   2020-09-19   
989-855 7 Muir MI SGNWMIFAXCY  508J CENTURYLINK COMMUNICATIONS, LLC 344   2015-05-07   
989-855 8 Muir MI SGNWMIFAXKX  543C ONVOY, LLCV - MI 344   2015-11-05   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.