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: 756

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-756 A Chatham LA SHPTLAMAXZY  749E ONVOY, LLC - LA 486      
318-756 0 Chatham LA   624H ONVOY SPECTRUM, LLC 486   2023-07-14   
318-756 5 Chatham LA   749E ONVOY, LLC - LA 486   2021-04-05   
318-756 6 Chatham LA   749E ONVOY, LLC - LA 486   2021-04-05   
318-756 7 Chatham LA   749E ONVOY, LLC - LA 486   2021-02-21   

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

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