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: BRYNTXXAQMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
979-978 2 Snook-Tunis TX 903C ONVOY, LLC - TX 570   2021-06-03   
979-978 3 Snook-Tunis TX 903C ONVOY, LLC - TX 570   2021-06-03   
979-978 6 Snook-Tunis TX 903C ONVOY, LLC - TX 570   2021-07-02   
979-978 7 Snook-Tunis TX 903C ONVOY, LLC - TX 570   2018-08-02   
979-985 2 Bryan-College Station TX 903C ONVOY, LLC - TX 570   2014-09-27   
979-985 3 Bryan-College Station TX 903C ONVOY, LLC - TX 570   2014-09-27   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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