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.

Lake City, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
231-236 A GDRPMIBQ1MD  4632 TELNET WORLDWIDE, INC. 348      
231-257 A LKCYMIXI2MD  116F PENINSULA FIBER NETWORK, LLC - MI 348      
231-257 0 LKCYMIXI2MD  116F PENINSULA FIBER NETWORK, LLC - MI 348   2019-04-19   
231-257 4 GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2022-05-14   
231-295 A GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      
231-295 1 GFTPMIEF1MD  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      
231-295 7 TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348   2015-08-08   
231-839 A LKCYMIXIDS1  0702 CENTURYTEL OF MICHIGAN, INC. DBA CENTURYLINK 348      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.