Local Calling Guide

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NPA: 406 [Rate centres in NPA 406] [Dial plan for NPA 406]

NXX: 770

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-770 A Great Falls MT GRFLMTMAUMD  318J COMCAST IP PHONE, LLC 648      
406-770 0 Great Falls MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-11-18   
406-770 1 Great Falls MT GRFLMTMAUMD  318J COMCAST IP PHONE, LLC 648   2023-06-12   
406-770 2 Great Falls MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-770 3 Great Falls MT HLNAMTHHPS1  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 648   2008-06-09   
406-770 4 Great Falls MT HLNAMTMAMMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 648   2016-08-16   
406-770 5 Great Falls MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-770 6 Great Falls MT MSSLMTMAYMD  771G TELEPORT COMMUNICATIONS AMERICA MT - LLC 648   2013-03-18   
406-770 7 Great Falls MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2019-11-18   
406-770 8 Great Falls MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2022-09-11   
406-770 9 Great Falls MT MSSLMTAG5MD  6010 NEW CINGULAR WIRELESS PCS, LLC 648   2016-06-05   

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

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