Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]

NXX: 971

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-971 A Plevna MT BLNGMTWEIMD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-971 0 Plevna MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-971 5 Plevna MT   145J TERRA NOVA TELECOM INC. 650   2026-01-04   
406-971 8 Plevna MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-971 9 Plevna MT   6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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