Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 337 [Rate centres in NPA 337] [Dial plan for NPA 337]

NXX: 426

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-426 A Lake Charles LA LKCHLADTSMD  153F BANDWIDTH.COM CLEC, LLC - LA 488      
337-426 0 Lake Charles LA   153F BANDWIDTH.COM CLEC, LLC - LA 488   2008-11-05   
337-426 1 Lake Charles LA   153F BANDWIDTH.COM CLEC, LLC - LA 488   2010-04-26   
337-426 2 Lake Charles LA   150C VOICESTREAM GSM I, LLC 488   2010-08-29   
337-426 4 Lake Charles LA   5562 METROPCS, INC. 488   2011-10-31   
337-426 5 Lake Charles LA   749E ONVOY, LLC - LA 488   2022-12-22   
337-426 8 Lake Charles LA   153F BANDWIDTH.COM CLEC, LLC - LA 488   2016-08-21   
337-426 9 Lake Charles LA   749E ONVOY, LLC - LA 488   2022-12-22   

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

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