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: HSTNTX362MD

<< 1 2 3 4 5 6

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
979-578 7 El Campo TX 939H COMMIO, LLC 560   2024-01-19   
979-607 3 El Campo TX 939H COMMIO, LLC 560   2023-08-27   
979-607 4 El Campo TX 939H COMMIO, LLC 560   2023-08-27   
979-607 5 El Campo TX 939H COMMIO, LLC 560   2024-01-19   
979-635 5 El Campo TX 939H COMMIO, LLC 560   2023-08-27   
979-635 7 El Campo TX 939H COMMIO, LLC 560   2023-08-27   
979-635 8 El Campo TX 939H COMMIO, LLC 560   2023-08-27   
979-637 2 El Campo TX 939H COMMIO, LLC 560   2024-01-19   
979-637 3 El Campo TX 939H COMMIO, LLC 560   2024-01-19   
979-758 0 Garwood TX 939H COMMIO, LLC 560   2024-01-20   
979-758 5 Garwood TX 939H COMMIO, LLC 560   2024-01-20   
979-800 1 Garwood TX 939H COMMIO, LLC 560   2024-01-20   
979-999 0 Garwood TX 939H COMMIO, LLC 560   2023-08-27   

<< 1 2 3 4 5 6

Last updated: Tue, 16 Jun 2026 00:09:45 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.