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 NWORLAMA46Z  749E ONVOY, LLC - LA 490   2023-10-21   
504-238 1 New Orleans LA NWORLAMA46Z  749E ONVOY, LLC - LA 490   2025-10-16   
504-238 2 New Orleans LA NWORLAMA46Z  749E ONVOY, LLC - LA 490   2023-10-20   
504-238 6 New Orleans LA NWORLAMA46Z  749E ONVOY, LLC - LA 490   2023-10-21   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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