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: 686

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-686 A Fairfax MO FRFXMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-686 0 Fairfax MO FRFXMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-686 1 Fairfax MO RCPTMO020MD  454H MIDWEST DATA CENTER, INC. - MO 524   2015-04-16   
660-686 2 Fairfax MO FRFXMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-686 3 Fairfax MO FRFXMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-686 6 Fairfax MO   145J TERRA NOVA TELECOM INC. 524   2025-07-26   
660-686 7 Fairfax MO KSCZMODR3MD  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 524   2013-10-31   
660-686 9 Fairfax MO FRFXMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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