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: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-375 A Hamilton MT HMTNMTMADS0  9636 QWEST CORPORATION 648      
406-375 0 Hamilton MT HMTNMTMADS0  9636 QWEST CORPORATION 648      
406-375 1 Hamilton MT HMTNMTMADS0  9636 QWEST CORPORATION 648      
406-375 2 Hamilton MT HMTNMTMADS0  9636 QWEST CORPORATION 648      
406-375 3 Hamilton MT GRFLMTMA7MD  453F ONVOY, LLC - MT 648   2022-09-19   
406-375 4 Hamilton MT HMTNMTMADS0  9636 QWEST CORPORATION 648      
406-375 5 Hamilton MT MSSLMTEHPS0  008E BRESNAN BROADBAND OF MONTANA, LLC - MT [CHARTER] 648   2006-05-17   
406-375 6 Hamilton MT HMTNMTMADS0  9636 QWEST CORPORATION 648      
406-375 7 Hamilton MT HMTNMTMADS0  9636 QWEST CORPORATION 648      
406-375 8 Hamilton MT HMTNMTMADS0  9636 QWEST CORPORATION 648      
406-375 9 Hamilton MT HMTNMTMADS0  9636 QWEST CORPORATION 648      

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

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