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: BTRGLAGW3MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
225-239 A Baton Rouge LA 150C VOICESTREAM GSM I, LLC DBA T-MOBILE USA 492   2011-12-04   
225-249 A Baton Rouge LA 150C VOICESTREAM GSM I, LLC DBA T-MOBILE USA 492   2011-08-21   
225-284 A Baton Rouge LA 150C VOICESTREAM GSM I, LLC DBA T-MOBILE USA 492      
225-288 A Baton Rouge LA 150C VOICESTREAM GSM I, LLC DBA T-MOBILE USA 492      
225-361 A Baton Rouge LA 150C VOICESTREAM GSM I, LLC DBA T-MOBILE USA 492   2009-04-19   
225-371 A Baton Rouge LA 150C VOICESTREAM GSM I, LLC DBA T-MOBILE USA 492   2010-01-01   
225-733 A Baton Rouge LA 150C VOICESTREAM GSM I, LLC DBA T-MOBILE USA 492      

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

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