Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Harlem, MT

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
406-353 A FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-353 0 FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-353 1   792K CHARTER IP ENABLED SERVICES, LLC 648      
406-353 2 FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-353 3 FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-353 4 FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-353 5 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      
406-353 6 MSSLMTMA0MD  9415 LEVEL 3 COMMUNICATIONS, LLC - MT 648      
406-353 7 FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-353 8 FTBNMTXCDS0  3310 TRIANGLE TEL. COOP. ASSN., INC. 648      
406-353 9 HLNAMTMAX1X  6564 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MT 648      

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

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