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: BWWDTXXATMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
325-322 A Llano TX 903C ONVOY, LLC - TX 961      
325-329 A Comanche TX 903C ONVOY, LLC - TX 961      
325-770 A Junction TX 903C ONVOY, LLC - TX 961      
325-910 A Brady TX 903C ONVOY, LLC - TX 961      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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