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: DLLATX37FMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
469-936 9 Princeton TX 073H TELNYX LLC 552   2022-04-02   
682-349 A Grapevine TX 073H TELNYX LLC 552      
682-349 0 Grapevine TX 073H TELNYX LLC 552   2021-06-26   
682-380 8 Arlington TX 073H TELNYX LLC 552   2022-06-19   
682-746 0 Euless TX 073H TELNYX LLC 552   2022-06-06   
945-228 7 Cedar Hill TX 073H TELNYX LLC 552   2022-04-09   
945-229 0 Dallas TX 073H TELNYX LLC 552   2022-04-23   
945-259 2 Waxahachie TX 073H TELNYX LLC 552   2022-07-23   
945-529 5 Venus TX 073H TELNYX LLC 552   2022-03-25   
945-732 0 Frisco TX 073H TELNYX LLC 552   2022-04-04   
945-788 0 Wilmer TX 073H TELNYX LLC 552   2022-04-09   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.