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: SNANTX91X6Y

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-457 A San Antonio TX 7087 ICG CHOICE COM, L.P. - TX 566      
210-576 A San Antonio TX 7087 ICG CHOICE COM, L.P. - TX 566   2021-02-07   

Last updated: Fri, 01 Jul 2022 02:53:40 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.