Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-879 9 Havre MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2013-03-29   
406-880 A Missoula MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-885 A Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-890 0 Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-06-08   
406-890 1 Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-08-24   
406-890 3 Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-10-12   
406-890 4 Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2009-11-09   
406-890 5 Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-02-09   
406-890 8 Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-05-03   
406-890 9 Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2010-09-04   
406-897 0 Columbia Falls MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2021-11-18   
406-897 3 Columbia Falls MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2014-02-07   
406-897 4 Columbia Falls MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2011-09-30   
406-909 A Columbia Falls MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-909 0 Columbia Falls MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2018-07-08   
406-916 0 Helena MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2025-11-24   
406-925 A Dillon MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-925 0 Dillon MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-925 1 Dillon MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-925 2 Dillon MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-925 3 Dillon MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-925 9 Dillon MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-955 A Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2024-01-18   
406-955 0 Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2025-11-25   
406-955 1 Kalispell MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648   2024-08-22   
406-980 A Townsend MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-980 0 Townsend MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-980 1 Townsend MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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