Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 318 [Rate centres in NPA 318] [Dial plan for NPA 318]

NXX: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-304 A Calcasieu LA SHPTLAMAXZY  749E ONVOY, LLC - LA 486      
318-304 2 Calcasieu LA SHPTLAMAXZY  749E ONVOY, LLC - LA 486   2023-01-09   
318-304 3 Calcasieu LA SHPTLAMAXZY  749E ONVOY, LLC - LA 486   2023-03-18   
318-304 8 Calcasieu LA SHPTLAMAXZY  749E ONVOY, LLC - LA 486   2023-09-28   
318-304 9 Calcasieu LA SHPTLAMA02Z  624H ONVOY SPECTRUM, LLC 486   2023-07-14   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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