Local Calling Guide

Area code/prefix search

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NPA: 504 [Rate centres in NPA 504] [Dial plan for NPA 504]

NXX: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-600 A Kenner LA NWORLAMTX6Y  150C VOICESTREAM GSM I, LLC 490      
504-600 0 Kenner LA NWORLAMTX6Y  150C VOICESTREAM GSM I, LLC 490   2011-01-21   
504-600 1 Kenner LA NWORLAMAY2X  624H ONVOY SPECTRUM, LLC 490   2023-11-19   
504-600 4 Kenner LA NWORLAMAY2X  624H ONVOY SPECTRUM, LLC 490   2024-12-05   
504-600 5 Kenner LA NWORLAMAY2X  624H ONVOY SPECTRUM, LLC 490   2024-12-05   
504-600 6 Kenner LA NWORLAMAY2X  624H ONVOY SPECTRUM, LLC 490   2024-12-05   
504-600 8 Kenner LA NWORLAMTX6Y  150C VOICESTREAM GSM I, LLC 490   2010-12-24   
504-600 9 Kenner LA   624H ONVOY SPECTRUM, LLC 490   2025-05-17   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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