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: HSTNTXJADS5

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
713-496 A Houston TX 4911 IONEX COMMUNICATIONS SOUTH, INC. - TX 560      
832-948 A Spring TX 4911 IONEX COMMUNICATIONS SOUTH, INC. - TX 560      

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

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