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: 204

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-204 A Smithton MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
660-204 0 Smithton MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
660-204 1 Smithton MO KSCYMO55XSY  073H TELNYX LLC 524   2020-08-07   
660-204 2 Smithton MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2023-07-31   
660-204 7 Smithton MO KSCAMO961MD  508J CENTURYLINK COMMUNICATIONS, LLC 524   2013-11-06   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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