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: 722

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-722 A Urich MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
660-722 0 Urich MO KSCYKSJOSMD  993E BANDWIDTH.COM CLEC, LLC - MO 524   2009-01-17   
660-722 2 Urich MO   145J TERRA NOVA TELECOM INC. 524   2025-08-01   
660-722 4 Urich MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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