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: 659

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-659 A North Parkman MT DNRHWYMARS1  9636 QWEST CORPORATION 654      
406-659 5 North Parkman MT CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654      
406-659 6 North Parkman MT CHYNWYMAXAX  508J CENTURYLINK COMMUNICATIONS, LLC 654      
406-659 7 North Parkman MT CHYNWYMAX2X  453F ONVOY, LLC - MT 654      
406-659 8 North Parkman MT CHYNWYMAEMD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 654      
406-659 9 North Parkman MT DNRHWYMARS1  9636 QWEST CORPORATION 654      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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