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: 612

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
337-612 A Iota LA ABVLLACT0MD  4930 LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. 488      
337-612 0 Iota LA   792K CHARTER IP ENABLED SERVICES, LLC 488   2017-05-20   
337-612 1 Iota LA   4930 LOUISIANA COMPETITIVE TELECOMMUNICATIONS, INC. 488   2016-08-20   
337-612 2 Iota LA   749E ONVOY, LLC - LA 488   2021-02-19   
337-612 3 Iota LA   749E ONVOY, LLC - LA 488   2021-04-05   
337-612 6 Iota LA   749E ONVOY, LLC - LA 488   2019-08-31   
337-612 8 Iota LA   939H COMMIO, LLC 488   2022-10-15   
337-612 9 Iota LA   624H ONVOY SPECTRUM, LLC 488   2023-07-23   

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

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