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: 619

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-619 A Youngsville LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2024-08-24   
337-619 0 Youngsville LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2024-08-24   
337-619 1 Youngsville LA LFYTLAMAX9Y  749E ONVOY, LLC - LA 488   2024-09-15   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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