Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 660 [Rate centres in NPA 660] [Dial plan for NPA 660]

NXX: 729

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-729 A Clearmont MO BRJTMOXADS1  4401 IAMO COMMUNICATIONS, INC. 524      
660-729 0 Clearmont MO BRJTMOXADS1  4401 IAMO COMMUNICATIONS, INC. 524      
660-729 1 Clearmont MO BRJTMOXADS1  4401 IAMO COMMUNICATIONS, INC. 524      
660-729 2 Clearmont MO BRJTMOXADS1  4401 IAMO COMMUNICATIONS, INC. 524      
660-729 3 Clearmont MO BRJTMOXADS1  4401 IAMO COMMUNICATIONS, INC. 524      
660-729 4 Clearmont MO BRJTMOXADS1  4401 IAMO COMMUNICATIONS, INC. 524      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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