Local Calling Guide

Area code/prefix search

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

NXX: 279

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
940-279 A Lake Dallas TX   792K CHARTER IP ENABLED SERVICES, LLC 552      
940-279 0 Lake Dallas TX DLLTTX01HMD  6529 T-MOBILE USA, INC. 552   2017-10-06   
940-279 1 Lake Dallas TX   792K CHARTER IP ENABLED SERVICES, LLC 552   2010-08-05   
940-279 2 Lake Dallas TX DLLTTX01HMD  6529 T-MOBILE USA, INC. 552   2019-07-19   
940-279 3 Lake Dallas TX DLLTTX01HMD  6529 T-MOBILE USA, INC. 552   2020-04-24   
940-279 4 Lake Dallas TX   792K CHARTER IP ENABLED SERVICES, LLC 552   2016-08-12   
940-279 5 Lake Dallas TX DLLTTX01HMD  6529 T-MOBILE USA, INC. 552   2018-06-02   
940-279 6 Lake Dallas TX DLLTTX01HMD  6529 T-MOBILE USA, INC. 552   2018-06-02   
940-279 7 Lake Dallas TX FTWQTXFH0MD  508J CENTURYLINK COMMUNICATIONS, LLC 552   2014-05-19   
940-279 8 Lake Dallas TX DLLTTX01HMD  6529 T-MOBILE USA, INC. 552   2021-06-20   
940-279 9 Lake Dallas TX DLLTTX01HMD  6529 T-MOBILE USA, INC. 552   2017-10-06   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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