Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 958H TRIANGLE COMMUNICATION SYSTEM, INC. - MT-

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
406-399 8 South Havre MT HAVRMTXCDS1  648      
406-400 A Havre MT HAVRMTXCDS1  648      
406-400 2 Havre MT HAVRMTXCDS1  648      

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

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