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: 563

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
660-563 A Knobnoster MO KNNSMOLORPB  9533 SOUTHWESTERN BELL 524      
660-563 0 Knobnoster MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 524   2005-07-31   
660-563 1 Knobnoster MO   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 524      
660-563 2 Knobnoster MO   9533 SOUTHWESTERN BELL 524      
660-563 3 Knobnoster MO   9533 SOUTHWESTERN BELL 524      
660-563 4 Knobnoster MO   9533 SOUTHWESTERN BELL 524      
660-563 5 Knobnoster MO   9533 SOUTHWESTERN BELL 524      
660-563 6 Knobnoster MO   9533 SOUTHWESTERN BELL 524      
660-563 7 Knobnoster MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 524   2014-05-08   
660-563 8 Knobnoster MO   516C AT&T CORP. 524   2011-10-04   
660-563 9 Knobnoster MO   9533 SOUTHWESTERN BELL 524      

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

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