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: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
406-538 A Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 1 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 2 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 3 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 4 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 5 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 6 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 7 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 8 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      
406-538 9 Lewistown MT LWTWMTMADS0  9636 QWEST CORPORATION 648      

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

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