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.


NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
254-273 A Bartlett TX 516C AT&T CORP. 556   2010-11-14   
254-339 A Waco TX 516C AT&T CORP. 556   2005-05-21   
254-374 A Gholson TX 516C AT&T CORP. 556   2011-10-24   

Last updated: Sun, 10 Nov 2019 13:49:34 UTC

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