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: 388

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-388 A Salisbury MO HNVIMOXADS0  1864 CHARITON VALLEY TEL. CO. 524      
660-388 4 Salisbury MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524   2024-09-19   
660-388 5 Salisbury MO HNVIMOXADS0  1864 CHARITON VALLEY TEL. CO. 524      
660-388 6 Salisbury MO HNVIMOXADS0  1864 CHARITON VALLEY TEL. CO. 524      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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