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.
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Switch: MRNCMIXIDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-458 A Morenci MI 0681 FRONTIER MIDSTATES, INC. - MI 340      
517-458 1 Morenci MI 0681 FRONTIER MIDSTATES, INC. - MI 340      
517-458 2 Morenci MI 0681 FRONTIER MIDSTATES, INC. - MI 340      
517-458 6 Morenci MI 0681 FRONTIER MIDSTATES, INC. - MI 340      
517-458 7 Morenci MI 0681 FRONTIER MIDSTATES, INC. - MI 340      

Last updated: Wed, 12 Jan 2022 16:20:07 UTC

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