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: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-538 A Blackburn MO BLBNMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-538 0 Blackburn MO BLBNMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      
660-538 2 Blackburn MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2019-12-14   
660-538 3 Blackburn MO WRBGMOXAXCX  093F ONVOY, LLC - MO 524   2019-12-14   
660-538 4 Blackburn MO BLBNMOXARS0  1811 EMBARQ MISSOURI, INC. DBA CENTURYLINK - MO 524      

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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