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: 279

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-279 A Blackburn MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
660-279 0 Blackburn MO   993E BANDWIDTH.COM CLEC, LLC - MO 524   2009-02-13   
660-279 1 Blackburn MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 524   2014-04-20   
660-279 2 Blackburn MO   197D VONAGE AMERICA LLC 524   2019-10-06   
660-279 3 Blackburn MO   073H TELNYX LLC 524   2020-07-25   
660-279 4 Blackburn MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524      
660-279 5 Blackburn MO   318J COMCAST IP PHONE, LLC 524   2025-07-11   
660-279 6 Blackburn MO   624H ONVOY SPECTRUM, LLC 524   2021-07-03   
660-279 7 Blackburn MO   508J CENTURYLINK COMMUNICATIONS, LLC 524   2013-11-04   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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