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: 508

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
318-508 A Many LA SHPTLAMAXZY  749E ONVOY, LLC - LA 486      
318-508 0 Many LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 486      
318-508 1 Many LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 486      
318-508 2 Many LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 486      
318-508 3 Many LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 486      
318-508 4 Many LA   749E ONVOY, LLC - LA 486   2023-09-16   
318-508 5 Many LA   653C TELEPORT COMMUNICATIONS AMERICA LA - LLC 486   2016-06-24   
318-508 6 Many LA   749E ONVOY, LLC - LA 486   2021-02-19   
318-508 7 Many LA   749E ONVOY, LLC - LA 486   2016-03-28   
318-508 8 Many LA   749E ONVOY, LLC - LA 486   2016-03-28   
318-508 9 Many LA   749E ONVOY, LLC - LA 486   2019-03-31   

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

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