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: BTRGLA12DS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
225-332 0 Baton Rouge LA 477H AIRUS, INC. - LA 492   2021-10-22   
225-427 A Baton Rouge LA 477H AIRUS, INC. - LA 492      
225-427 1 Baton Rouge LA 477H AIRUS, INC. - LA 492   2018-12-24   
225-427 9 Baton Rouge LA 477H AIRUS, INC. - LA 492   2019-10-28   
225-481 A Baton Rouge LA 477H AIRUS, INC. - LA 492      
225-481 1 Baton Rouge LA 477H AIRUS, INC. - LA 492   2022-05-13   
225-481 2 Baton Rouge LA 477H AIRUS, INC. - LA 492   2022-05-13   
225-929 0 Baton Rouge LA 477H AIRUS, INC. - LA 492   2021-02-27   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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