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.

Switch: NWORLAMAYBX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
504-303 A Kenner LA 7421 AT&T - LOCAL 490      
504-303 3 Kenner LA 7421 AT&T - LOCAL 490      
504-613 A New Orleans LA 7421 AT&T - LOCAL 490      
504-613 1 New Orleans LA 7421 AT&T - LOCAL 490      
985-332 A Angie LA 7421 AT&T - LOCAL 490      
985-332 9 Angie LA 7421 AT&T - LOCAL 490   2019-09-02   
985-360 A Houma LA 7421 AT&T - LOCAL 490      
985-360 4 Houma LA 7421 AT&T - LOCAL 490   2004-01-26   
985-520 3 Hammond LA 7421 AT&T - LOCAL 490   2004-01-26   
985-635 3 Covington LA 7421 AT&T - LOCAL 490   2002-11-27   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.