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: SNANTXCA41Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
210-597 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
210-783 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
210-890 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-201 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-780 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-781 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-782 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-783 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-784 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-785 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-786 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-787 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-788 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
726-789 A San Antonio TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
830-214 A New Braunfels TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
830-327 A New Braunfels TX 7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
830-335 A Eagle Pass TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
830-349 A Castroville TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
830-387 A New Braunfels TX 7148 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
830-494 A Luling TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566      
956-470 A Laredo TX 7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 566   2024-11-18   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.