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.

Slaton, TX

<< 1 2

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
806-900 2 LBCKTXPSX9Y  903C ONVOY, LLC - TX 544   2021-01-30   
806-900 3 LBCKTXPSXUY  515J IP HORIZON LLC 544   2021-03-15   
806-900 8 LBCKTXPSXOY  624H ONVOY SPECTRUM, LLC 544   2024-04-27   
806-900 9 LBCKTXPSX9Y  903C ONVOY, LLC - TX 544   2019-09-22   

<< 1 2

Last updated: Tue, 01 Sep 2026 00:40:05 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.