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.

Hubbard Lake, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
989-727 A HBLKMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-727 0 SGNWMIECXQX  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 344   2006-05-31   
989-727 1   792K CHARTER IP ENABLED SERVICES, LLC 344   2007-03-18   
989-727 2 HBLKMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-727 3 HBLKMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-727 4 HBLKMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-727 6 SGNWMIFAXCY  508J CENTURYLINK COMMUNICATIONS, LLC 344   2015-05-08   
989-727 7 SGNWMIFAZMD  2550 123.NET, LLC 344   2013-03-09   
989-727 8 HBLKMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      
989-727 9 HBLKMIXGRS0  0695 FRONTIER NORTH, INC. - MI 344      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.