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: 371

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-371 A Billings MT BLNGMTWEAMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 650      
406-371 0 Billings MT   145J TERRA NOVA TELECOM INC. 650   2022-05-05   
406-371 1 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2006-06-25   
406-371 2 Billings MT BLNGMTWEAMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 650   2017-08-20   
406-371 3 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2006-06-25   
406-371 4 Billings MT BLNGMTWEAMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 650   2013-08-30   
406-371 5 Billings MT BLNGMT93PS1  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 650   2006-12-08   
406-371 6 Billings MT BLNGMTMAMMD  6010 NEW CINGULAR WIRELESS PCS, LLC 650   2007-03-18   
406-371 7 Billings MT BLNGMT93PS1  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 650   2014-04-30   
406-371 8 Billings MT BLNGMTMADS1  9636 QWEST CORPORATION 650   2006-07-10   
406-371 9 Billings MT BLNGMTWEAMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 650   2004-09-19   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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