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: 693

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-693 A Montrose MO MTRSMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-693 0 Montrose MO   1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-693 2 Montrose MO   1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-693 3 Montrose MO   993E BANDWIDTH.COM CLEC, LLC - MO 524   2009-02-13   
660-693 4 Montrose MO   1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-693 6 Montrose MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 524   2014-05-04   
660-693 8 Montrose MO   145J TERRA NOVA TELECOM INC. 524   2025-09-01   

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

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