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.
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Switch: DLLSTX97KMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
469-906 2 Dallas TX 156J RCLEC, INC. 552   2015-05-30   
469-930 A Dallas TX 156J RCLEC, INC. 552      
469-930 4 Dallas TX 156J RCLEC, INC. 552   2014-04-07   
972-402 5 Dallas TX 156J RCLEC, INC. 552   2016-01-04   
972-982 7 Dallas TX 156J RCLEC, INC. 552   2017-09-09   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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