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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-900 A New Orleans LA NWORLAMA46Z  749E ONVOY, LLC - LA 490      
504-900 0 New Orleans LA   749E ONVOY, LLC - LA 490   2015-04-27   
504-900 1 New Orleans LA   318J COMCAST IP PHONE, LLC 490   2015-06-07   
504-900 2 New Orleans LA   749E ONVOY, LLC - LA 490   2015-06-12   
504-900 3 New Orleans LA   749E ONVOY, LLC - LA 490   2015-06-12   
504-900 4 New Orleans LA   749E ONVOY, LLC - LA 490   2015-06-12   
504-900 5 New Orleans LA   5562 METROPCS, INC. 490   2016-12-21   
504-900 6 New Orleans LA   5562 METROPCS, INC. 490   2016-12-21   
504-900 7 New Orleans LA   3610 RESERVE LONG DIST CO DBA RESERVE TELECOMM - LA 490   2015-07-11   
504-900 8 New Orleans LA   749E ONVOY, LLC - LA 490   2015-04-27   
504-900 9 New Orleans LA   749E ONVOY, LLC - LA 490   2015-04-27   

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

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