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: BTRGLA12X9Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
225-259 4 Livonia LA 145J TERRA NOVA TELECOM INC. 492   2026-01-04   
225-459 6 Gonzales LA 145J TERRA NOVA TELECOM INC. 492   2026-01-04   
225-482 2 Sorrento LA 145J TERRA NOVA TELECOM INC. 492   2026-01-04   
225-600 6 Maurepas LA 145J TERRA NOVA TELECOM INC. 492   2026-01-04   
225-877 A Baton Rouge LA 145J TERRA NOVA TELECOM INC. 492      

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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