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.

Torch River Bridge, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
231-320 A GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-320 0 GDRPMIBL00Z  991E BANDWIDTH.COM CLEC, LLC - MI 348      
231-320 1 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-320 2 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-320 4 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-320 8 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-320 9   624H ONVOY SPECTRUM, LLC 348      
231-322 A TRRVMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-322 0 GDRPMIBLXTZ  3535 ACD TELECOM, INC. - MI 348      
231-322 1 GDRPMIQLX5Y  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348      
231-322 2 TRRVMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-322 3 ANTSMIADPS0  351D CHARTER FIBERLINK - MICHIGAN, LLC - MI 348      
231-322 4 TRRVMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-322 5 TRCYMIMNWMD  508J CENTURYLINK COMMUNICATIONS, LLC 348      
231-322 6 TRRVMIXGRS0  0695 FRONTIER NORTH, INC. - MI 348      
231-322 7 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-322 8 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-322 9 GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.