Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: CLRVMIXHRS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
231-377 A Clam River MI 0695 FRONTIER NORTH, INC. - MI 348      
231-377 4 Clam River MI 0695 FRONTIER NORTH, INC. - MI 348      
231-377 6 Clam River MI 0695 FRONTIER NORTH, INC. - MI 348      
231-377 7 Clam River MI 0695 FRONTIER NORTH, INC. - MI 348      
231-377 9 Clam River MI 0695 FRONTIER NORTH, INC. - MI 348      

Last updated: Sun, 28 Feb 2021 19:06:05 UTC

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