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: 422

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-422 A Helena MT   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-422 0 Helena MT   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-422 1 Helena MT   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-422 2 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-422 3 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-422 4 Helena MT   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-422 5 Helena MT   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-422 6 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-422 7 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-422 8 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-422 9 Helena MT HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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