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: NWORLAMODC0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
504-262 A New Orleans LA 7488 LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 490      
504-306 A Kenner LA 7488 LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 490      
504-617 A Kenner LA 7488 LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 490      
504-620 A New Orleans LA 7488 LEVEL 3 TELECOM OF LOUISIANA, LLC - LA 490      

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

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