Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 504 [Rate centres in NPA 504] [Dial plan for NPA 504]

NXX: 238

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-238 A New Orleans LA NWORLAMA46Z  749E ONVOY, LLC - LA 490      
504-238 0 New Orleans LA   749E ONVOY, LLC - LA 490   2023-10-21   
504-238 1 New Orleans LA   749E ONVOY, LLC - LA 490   2025-10-16   
504-238 2 New Orleans LA   749E ONVOY, LLC - LA 490   2023-10-20   
504-238 3 New Orleans LA   749E ONVOY, LLC - LA 490   2025-11-09   
504-238 4 New Orleans LA   749E ONVOY, LLC - LA 490   2025-11-09   
504-238 5 New Orleans LA   749E ONVOY, LLC - LA 490   2025-11-09   
504-238 6 New Orleans LA   749E ONVOY, LLC - LA 490   2023-10-21   
504-238 7 New Orleans LA   749E ONVOY, LLC - LA 490   2025-11-09   
504-238 8 New Orleans LA   749E ONVOY, LLC - LA 490   2025-11-09   
504-238 9 New Orleans LA   490J DISH WIRELESS, LLC 490   2026-01-01   

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

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