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: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
940-304 A Denton TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552      
940-304 0 Denton TX DLLSTXALDS4  903C ONVOY, LLC - TX 552   2017-07-02   
940-304 1 Denton TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2016-08-20   
940-304 2 Denton TX DLLSTX37XWZ  004F BANDWIDTH.COM CLEC, LLC - TX 552   2016-08-20   
940-304 3 Denton TX DLLSTXJFDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 552   2016-09-08   
940-304 4 Denton TX DLLSTXJFDMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 552   2022-09-25   
940-304 5 Denton TX FRSCTXESDS0  7726 SOUTHWESTERN BELL TELEPHONE COMPANY - TX 552   2016-05-02   
940-304 6 Denton TX DLLTTX01CMD  6529 T-MOBILE USA, INC. 552   2017-01-07   
940-304 7 Denton TX DLLTTX01CMD  6529 T-MOBILE USA, INC. 552   2017-01-07   
940-304 8 Denton TX DLLSTX97X1X  073H TELNYX LLC 552   2017-03-22   
940-304 9 Denton TX   515J IP HORIZON LLC 552   2017-07-14   

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

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.