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: 285

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-285 A New Orleans LA MTRELANJ2MD  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 490      
504-285 0 New Orleans LA   3232 LEVEL 3 COMMUNICATIONS, LLC - LA 490   2004-03-19   
504-285 1 New Orleans LA   624H ONVOY SPECTRUM, LLC 490   2021-12-01   
504-285 2 New Orleans LA   749E ONVOY, LLC - LA 490   2021-01-03   
504-285 3 New Orleans LA   153F BANDWIDTH.COM CLEC, LLC - LA 490   2021-02-05   
504-285 4 New Orleans LA   749E ONVOY, LLC - LA 490   2021-01-03   
504-285 5 New Orleans LA   749E ONVOY, LLC - LA 490   2021-01-03   
504-285 6 New Orleans LA   749E ONVOY, LLC - LA 490   2021-01-03   
504-285 7 New Orleans LA   749E ONVOY, LLC - LA 490   2020-10-29   
504-285 8 New Orleans LA   749E ONVOY, LLC - LA 490   2021-01-03   
504-285 9 New Orleans LA   749E ONVOY, LLC - LA 490   2020-10-29   

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

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