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: DLLSTXSQDS4

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
972-860 9 Dallas TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2009-02-11   
972-861 9 Dallas TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2009-02-11   
972-865 9 Dallas TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2011-03-10   
972-886 5 McKinney TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2007-12-15   
972-886 8 McKinney TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2008-07-20   
972-957 8 Irving TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2007-12-15   
972-968 7 Dallas TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2009-02-11   
972-968 8 Dallas TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2009-02-11   
972-968 9 Dallas TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2009-02-11   
972-984 2 McKinney TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2008-09-13   
972-984 6 McKinney TX 327E YMAX COMMUNICATIONS CORP. - TX 552   2008-09-13   

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Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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