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: SANGTXXAX0X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
325-290 A Ozona TX 903C ONVOY, LLC - TX 961      
325-291 A Sterling City TX 903C ONVOY, LLC - TX 961      
325-343 A Robert Lee TX 903C ONVOY, LLC - TX 961      
325-413 A Sonora TX 903C ONVOY, LLC - TX 961      
325-420 A Robert Lee TX 903C ONVOY, LLC - TX 961      
325-440 A Carlsbad TX 903C ONVOY, LLC - TX 961      
325-533 A Miles TX 903C ONVOY, LLC - TX 961      
325-550 A Eden TX 903C ONVOY, LLC - TX 961      
325-610 A San Angelo TX 903C ONVOY, LLC - TX 961      
325-666 A Winters TX 903C ONVOY, LLC - TX 961      
325-777 A San Angelo TX 903C ONVOY, LLC - TX 961      
325-880 A Menard TX 903C ONVOY, LLC - TX 961      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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