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: 526

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
940-526 A Justin TX JSTNTXXBRS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552      
940-526 0 Justin TX JSTNTXXBRS1  4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552   2022-12-08   
940-526 1 Justin TX IRNGTXXBXQX  583C TIME WARNER CBLE INFO SVC (TX) DBA TIME WARNER CBL 552   2023-08-27   
940-526 2 Justin TX DLLSTX97TMD  939H COMMIO, LLC 552   2024-01-19   
940-526 3 Justin TX   903C ONVOY, LLC - TX 552   2024-03-02   
940-526 4 Justin TX   4344 FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 552   2024-03-13   
940-526 5 Justin TX   903C ONVOY, LLC - TX 552   2024-04-05   
940-526 8 Justin TX DLLSTX97TMD  939H COMMIO, LLC 552   2024-01-19   
940-526 9 Justin TX DLLSTX97TMD  939H COMMIO, LLC 552   2024-01-19   

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.