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: 607

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-607 A Kenner LA NWORLAMTX6Y  150C VOICESTREAM GSM I, LLC 490      
504-607 0 Kenner LA   749E ONVOY, LLC - LA 490   2024-10-21   
504-607 1 Kenner LA   749E ONVOY, LLC - LA 490   2024-10-21   
504-607 2 Kenner LA   150C VOICESTREAM GSM I, LLC 490   2014-12-26   
504-607 3 Kenner LA   150C VOICESTREAM GSM I, LLC 490   2014-12-26   
504-607 4 Kenner LA   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 490   2020-05-02   
504-607 5 Kenner LA   150C VOICESTREAM GSM I, LLC 490   2014-12-26   
504-607 6 Kenner LA   150C VOICESTREAM GSM I, LLC 490   2014-12-26   
504-607 7 Kenner LA   749E ONVOY, LLC - LA 490   2018-11-30   
504-607 8 Kenner LA   150C VOICESTREAM GSM I, LLC 490   2014-12-26   
504-607 9 Kenner LA   624H ONVOY SPECTRUM, LLC 490   2025-05-17   

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

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