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.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
406-978 2 Baker MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-978 3 Baker MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-979 A Richey MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-979 0 Richey MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-979 5 Richey MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-979 8 Richey MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-979 9 Richey MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-981 A South Miles City MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-981 0 South Miles City MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-981 1 South Miles City MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-12-17   
406-983 A Ashland MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-983 0 Ashland MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-983 2 Ashland MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2018-12-17   
406-983 9 Ashland MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-987 A Glendive MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-987 0 Glendive MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-987 1 Glendive MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-987 9 Glendive MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650      
406-998 3 Billings MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2020-08-24   
406-998 4 Billings MT 6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 650   2020-08-24   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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