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: KATYTXXA9MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
281-769 6 Katy TX 903C ONVOY, LLC - TX 560   2022-08-22   
346-527 A Katy TX 903C ONVOY, LLC - TX 560      
346-527 0 Katy TX 903C ONVOY, LLC - TX 560   2022-01-21   
346-608 7 Katy TX 903C ONVOY, LLC - TX 560   2023-02-08   
346-608 8 Katy TX 903C ONVOY, LLC - TX 560   2023-02-08   
346-615 A Katy TX 903C ONVOY, LLC - TX 560      
346-615 0 Katy TX 903C ONVOY, LLC - TX 560   2023-09-17   
346-615 2 Katy TX 903C ONVOY, LLC - TX 560   2023-07-15   
346-615 3 Katy TX 903C ONVOY, LLC - TX 560   2023-03-10   
346-615 4 Katy TX 903C ONVOY, LLC - TX 560   2023-03-10   
346-637 1 Katy TX 903C ONVOY, LLC - TX 560   2022-12-12   
346-637 2 Katy TX 903C ONVOY, LLC - TX 560   2022-04-01   
346-637 3 Katy TX 903C ONVOY, LLC - TX 560   2022-04-01   
346-637 4 Katy TX 903C ONVOY, LLC - TX 560   2022-04-01   
346-637 5 Katy TX 903C ONVOY, LLC - TX 560   2022-12-12   
346-637 6 Katy TX 903C ONVOY, LLC - TX 560   2022-12-12   
346-922 0 Brookshire TX 903C ONVOY, LLC - TX 560   2023-10-29   
346-922 1 Brookshire TX 903C ONVOY, LLC - TX 560   2023-10-29   
346-922 3 Brookshire TX 903C ONVOY, LLC - TX 560   2021-12-23   
346-922 5 Brookshire TX 903C ONVOY, LLC - TX 560   2023-05-14   
346-922 8 Brookshire TX 903C ONVOY, LLC - TX 560   2023-07-15   
979-452 4 Beasley TX 903C ONVOY, LLC - TX 560   2021-12-23   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.