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: 642

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
314-642 A Ladue MO STLSMOPLDS4  4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520   2024-12-17   
314-642 0 Ladue MO   6529 T-MOBILE USA, INC. 520   2011-03-16   
314-642 1 Ladue MO   6529 T-MOBILE USA, INC. 520   2011-03-16   
314-642 2 Ladue MO   6529 T-MOBILE USA, INC. 520   2011-03-16   
314-642 3 Ladue MO   6529 T-MOBILE USA, INC. 520   2011-03-16   
314-642 4 Ladue MO   6529 T-MOBILE USA, INC. 520   2011-03-16   
314-642 5 Ladue MO   6529 T-MOBILE USA, INC. 520   2011-05-03   
314-642 6 Ladue MO   4932 LEVEL 3 COMMUNICATIONS, LLC - MO 520      
314-642 7 Ladue MO   6529 T-MOBILE USA, INC. 520   2011-05-03   
314-642 8 Ladue MO   6529 T-MOBILE USA, INC. 520   2011-05-03   
314-642 9 Ladue MO   6529 T-MOBILE USA, INC. 520   2011-05-03   

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

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