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.

Annarose, TX

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
361-566 A ANRSTXXARS0  2159 VALLEY TEL. COOP., INC. 564      

Last updated: Sun, 01 Nov 2026 02:11:49 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.