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: 336

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-336 A Kenner LA NWORLAMA46Z  749E ONVOY, LLC - LA 490   2024-03-01   
504-336 0 Kenner LA   749E ONVOY, LLC - LA 490   2024-05-11   
504-336 1 Kenner LA   749E ONVOY, LLC - LA 490   2022-12-16   
504-336 2 Kenner LA   153F BANDWIDTH.COM CLEC, LLC - LA 490   2014-05-05   
504-336 3 Kenner LA   153F BANDWIDTH.COM CLEC, LLC - LA 490   2014-05-05   
504-336 4 Kenner LA   516C AT&T CORP. 490   2014-10-13   
504-336 5 Kenner LA   653C TELEPORT COMMUNICATIONS AMERICA LA - LLC 490   2016-01-04   
504-336 6 Kenner LA   749E ONVOY, LLC - LA 490   2023-03-12   
504-336 7 Kenner LA   749E ONVOY, LLC - LA 490   2023-03-12   
504-336 8 Kenner LA   749E ONVOY, LLC - LA 490   2024-07-15   
504-336 9 Kenner LA   749E ONVOY, LLC - LA 490   2024-10-04   

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

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