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: 223

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-223 A Kenner LA NWORLAMAYSX  732J NUSO, LLC 490      
504-223 0 Kenner LA   749E ONVOY, LLC - LA 490   2024-02-22   
504-223 1 Kenner LA   732J NUSO, LLC 490   2023-10-19   
504-223 2 Kenner LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 490   2024-12-13   
504-223 3 Kenner LA   150C VOICESTREAM GSM I, LLC 490   2011-07-20   
504-223 4 Kenner LA   150C VOICESTREAM GSM I, LLC 490   2011-07-20   
504-223 5 Kenner LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 490   2024-12-13   
504-223 6 Kenner LA   150C VOICESTREAM GSM I, LLC 490   2015-07-29   
504-223 7 Kenner LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 490   2025-02-03   
504-223 8 Kenner LA   749E ONVOY, LLC - LA 490   2024-02-22   
504-223 9 Kenner LA   749E ONVOY, LLC - LA 490   2024-02-22   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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