Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

NXX: 788

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-788 A Lafitte LA NWORLASD6MD  965H FRACTEL, LLC 490      
504-788 0 Lafitte LA NWORLASD1MD  073H TELNYX LLC 490   2020-01-28   
504-788 1 Lafitte LA NWORLAMA46Z  749E ONVOY, LLC - LA 490   2020-12-19   
504-788 2 Lafitte LA NWORLAMA46Z  749E ONVOY, LLC - LA 490   2020-12-19   
504-788 3 Lafitte LA NWORLASD5MD  145J TERRA NOVA TELECOM INC. 490   2024-02-14   
504-788 4 Lafitte LA NWORLA14DS1  153F BANDWIDTH.COM CLEC, LLC - LA 490   2021-12-06   
504-788 5 Lafitte LA NWORLAMA99Z  5562 METROPCS, INC. 490   2021-12-13   
504-788 6 Lafitte LA NWORLAMA46Z  749E ONVOY, LLC - LA 490   2022-09-25   
504-788 7 Lafitte LA   749E ONVOY, LLC - LA 490   2025-05-03   
504-788 8 Lafitte LA NWORLASD6MD  965H FRACTEL, LLC 490   2019-07-16   
504-788 9 Lafitte LA NWORLAMA61Z  153F BANDWIDTH.COM CLEC, LLC - LA 490   2020-09-04   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.