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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-518 A Gallatin Gateway MT   453F ONVOY, LLC MT 650      
406-518 0 Gallatin Gateway MT   453F ONVOY, LLC MT 650   2012-12-17   
406-518 1 Gallatin Gateway MT   994E BANDWIDTH.COM CLEC, LLC - MT 650   2015-05-31   
406-518 4 Gallatin Gateway MT   453F ONVOY, LLC MT 650   2019-09-15   
406-518 6 Gallatin Gateway MT   7575 CENTURYLINK COMMUNICATIONS LLC 650   2016-08-11   
406-518 7 Gallatin Gateway MT   453F ONVOY, LLC MT 650   2011-11-24   
406-518 8 Gallatin Gateway MT   073H TELNYX LLC 650   2019-10-04   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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