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.

NPA: 940 [Rate centres in NPA 940] [Dial plan for NPA 940]

NXX: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
940-900 A Lake Dallas TX DLLSTX97X5X  965H FRACTEL, LLC 552      
940-900 0 Lake Dallas TX DLLSTX97X5X  965H FRACTEL, LLC 552   2020-08-20   
940-900 1 Lake Dallas TX DLLATX37DS6  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 552   2022-03-17   
940-900 2 Lake Dallas TX DLLSTX97XGX  490J DISH WIRELESS, LLC 552   2022-05-30   
940-900 3 Lake Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-09-23   
940-900 4 Lake Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2020-09-23   
940-900 5 Lake Dallas TX DNTNTXXAX7Y  903C ONVOY, LLC - TX 552   2023-08-12   
940-900 6 Lake Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2021-11-21   
940-900 7 Lake Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2021-11-21   
940-900 8 Lake Dallas TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2021-11-21   
940-900 9 Lake Dallas TX DLLSTX97X5X  965H FRACTEL, LLC 552   2020-08-20   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.