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: SANGTXXAXOX

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
325-835 9 Mertzon TX 515J IP HORIZON LLC 961   2024-01-03   
325-866 0 Snyder TX 515J IP HORIZON LLC 550   2024-01-03   
325-866 9 Snyder TX 515J IP HORIZON LLC 550   2024-01-03   
325-867 0 San Angelo TX 515J IP HORIZON LLC 961   2024-01-03   
325-867 1 San Angelo TX 515J IP HORIZON LLC 961   2024-01-03   
325-896 0 Christoval TX 515J IP HORIZON LLC 961   2024-01-03   
325-896 9 Christoval TX 515J IP HORIZON LLC 961   2024-01-03   

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

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