Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 314 [Rate centres in NPA 314] [Dial plan for NPA 314]

NXX: 274

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
314-274 A Ladue MO STLSMO21DS3  9533 SOUTHWESTERN BELL 520      
314-274 0 Ladue MO   9533 SOUTHWESTERN BELL 520      
314-274 1 Ladue MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2015-04-21   
314-274 2 Ladue MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2014-09-27   
314-274 3 Ladue MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2015-04-21   
314-274 4 Ladue MO   9533 SOUTHWESTERN BELL 520      
314-274 5 Ladue MO   9533 SOUTHWESTERN BELL 520      
314-274 6 Ladue MO   225F PEERLESS NETWORK OF MISSOURI, LLC - MO 520   2016-02-13   
314-274 7 Ladue MO   516C AT&T CORP. 520   2015-08-29   
314-274 8 Ladue MO   792K CHARTER IP ENABLED SERVICES, LLC 520   2016-03-18   
314-274 9 Ladue MO   993E BANDWIDTH.COM CLEC, LLC - MO 520   2015-05-14   

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

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