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: 587

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-587 A Thornwell LA THWLLAXARS1  0434 BRIGHTSPEED OF LOUISIANA, LLC 488      
337-587 0 Thornwell LA   0434 BRIGHTSPEED OF LOUISIANA, LLC 488      
337-587 1 Thornwell LA   0434 BRIGHTSPEED OF LOUISIANA, LLC 488      
337-587 2 Thornwell LA   0434 BRIGHTSPEED OF LOUISIANA, LLC 488      
337-587 3 Thornwell LA   792K CHARTER IP ENABLED SERVICES, LLC 488   2024-10-18   
337-587 6 Thornwell LA   0434 BRIGHTSPEED OF LOUISIANA, LLC 488      
337-587 7 Thornwell LA   0434 BRIGHTSPEED OF LOUISIANA, LLC 488      
337-587 8 Thornwell LA   3232 LEVEL 3 COMMUNICATIONS, LLC - LA 488   2014-09-21   
337-587 9 Thornwell LA   0434 BRIGHTSPEED OF LOUISIANA, LLC 488      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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