Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: ALMAMIXGDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
989-331 A Alma MI 0695 FRONTIER NORTH, INC. - MI 344      
989-331 9 Alma MI 0695 FRONTIER NORTH, INC. - MI 344   2006-06-23   

Last updated: Sun, 17 May 2026 03:26:51 UTC

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