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: HRLNTXHGYMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
956-903 0 Mercedes TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2018-07-30   
956-903 4 Mercedes TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2004-11-24   
956-961 4 Pharr TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2007-01-19   
956-997 A Mission TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568      
956-997 0 Mission TX 583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 568   2015-11-29   

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

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