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: ATHNTXXATMD

<< 1 2 3 4

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
903-978 4 Lake Palestine East TX 903C ONVOY, LLC - TX 552   2021-10-14   
903-978 5 Lake Palestine East TX 903C ONVOY, LLC - TX 552   2021-10-14   
903-992 A Chandler TX 903C ONVOY, LLC - TX 552      
903-992 2 Chandler TX 903C ONVOY, LLC - TX 552   2021-03-07   
903-992 3 Chandler TX 903C ONVOY, LLC - TX 552   2021-03-07   
903-995 A Murchison TX 903C ONVOY, LLC - TX 552      
903-995 2 Murchison TX 903C ONVOY, LLC - TX 552   2021-03-07   
903-995 3 Murchison TX 903C ONVOY, LLC - TX 552   2021-03-07   
903-999 1 Martins Mill TX 903C ONVOY, LLC - TX 552   2016-04-11   
903-999 2 Martins Mill TX 903C ONVOY, LLC - TX 552   2016-04-11   
945-203 A Scurry TX 903C ONVOY, LLC - TX 552      
945-203 0 Scurry TX 903C ONVOY, LLC - TX 552   2023-09-30   
945-203 2 Scurry TX 903C ONVOY, LLC - TX 552   2023-01-05   
945-203 3 Scurry TX 903C ONVOY, LLC - TX 552   2021-08-21   
945-203 4 Scurry TX 903C ONVOY, LLC - TX 552   2021-08-21   
945-203 5 Scurry TX 903C ONVOY, LLC - TX 552   2021-09-23   
945-203 6 Scurry TX 903C ONVOY, LLC - TX 552   2021-09-23   
945-203 8 Scurry TX 903C ONVOY, LLC - TX 552   2023-07-21   
945-285 0 Kaufman TX 903C ONVOY, LLC - TX 552   2024-07-08   
945-285 4 Kaufman TX 903C ONVOY, LLC - TX 552   2023-03-16   
945-285 8 Kaufman TX 903C ONVOY, LLC - TX 552   2023-06-23   
972-452 6 Scurry TX 903C ONVOY, LLC - TX 552   2020-04-29   
972-452 9 Scurry TX 903C ONVOY, LLC - TX 552   2020-04-29   
972-962 9 Kaufman EMS TX 903C ONVOY, LLC - TX 552   2020-04-29   

<< 1 2 3 4

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.