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: 774

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-774 A Lambert MT LMBRMTXCRS1  2246 MID-RIVERS TEL. COOP., INC. 650      
406-774 3 Lambert MT LMBRMTXCRS1  2246 MID-RIVERS TEL. COOP., INC. 650      
406-774 4 Lambert MT BLNGMT233MD  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-12-17   
406-774 7 Lambert MT LMBRMTXCRS1  2246 MID-RIVERS TEL. COOP., INC. 650      
406-774 9 Lambert MT LMBRMTXCRS1  2246 MID-RIVERS TEL. COOP., INC. 650      

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

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