Local Calling Guide

Area code/prefix search

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NPA: 989 [Rate centres in NPA 989] [Dial plan for NPA 989]

NXX: 409

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
989-409 A Alma MI ALMAMIXGPS0  0695 FRONTIER NORTH, INC. - MI 344      
989-409 4 Alma MI ALMAMIXGPS0  0695 FRONTIER NORTH, INC. - MI 344   2015-06-22   
989-409 9 Alma MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 344   2025-04-17   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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