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: NWORLASD5MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
504-443 7 Kenner LA 145J TERRA NOVA TELECOM INC. 490   2026-04-30   
985-309 2 Grand Isle LA 145J TERRA NOVA TELECOM INC. 490   2026-01-04   
985-393 3 Hammond LA 145J TERRA NOVA TELECOM INC. 490   2026-04-30   
985-600 A Bush LA 145J TERRA NOVA TELECOM INC. 490      
985-691 0 Larose LA 145J TERRA NOVA TELECOM INC. 490   2026-01-04   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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