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.

De Berry, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
430-378 A   583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 554   2025-06-29   
430-378 1   583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 554   2025-06-29   
903-766 A DBRYTXXADS0  2068 EASTEX TEL. COOP., INC. 554      
903-937 A LGVWTXPLXHX  8625 COMCAST PHONE OF TEXAS, LLC - TX 554      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.