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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
940-230 8 Denton TX 5562 METROPCS, INC. 552   2006-01-27   
940-230 9 Denton TX 5562 METROPCS, INC. 552   2006-01-27   
940-239 4 Denton TX 6529 T-MOBILE USA, INC. 552   2024-11-21   
940-252 3 Denton TX 6529 T-MOBILE USA, INC. 552   2018-05-04   
940-252 5 Denton TX 6529 T-MOBILE USA, INC. 552   2018-05-04   
940-279 0 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2017-10-06   
940-279 2 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2019-07-19   
940-279 3 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2020-04-24   
940-279 5 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2018-06-02   
940-279 6 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2018-06-02   
940-279 8 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2021-06-20   
940-279 9 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2017-10-06   
940-287 4 Denton TX 6529 T-MOBILE USA, INC. 552   2021-01-15   
940-287 5 Denton TX 6529 T-MOBILE USA, INC. 552   2021-01-15   
940-297 7 Denton TX 6529 T-MOBILE USA, INC. 552   2007-07-04   
940-297 8 Denton TX 6529 T-MOBILE USA, INC. 552   2021-08-31   
940-297 9 Denton TX 6529 T-MOBILE USA, INC. 552   2006-03-13   
940-300 A Denton TX 5562 METROPCS, INC. 552      
940-300 0 Denton TX 5562 METROPCS, INC. 552      
940-300 1 Denton TX 5562 METROPCS, INC. 552      
940-300 2 Denton TX 6529 T-MOBILE USA, INC. 552   2006-03-09   
940-300 3 Denton TX 5562 METROPCS, INC. 552      
940-300 4 Denton TX 5562 METROPCS, INC. 552      
940-300 5 Denton TX 5562 METROPCS, INC. 552      
940-300 6 Denton TX 5562 METROPCS, INC. 552      
940-300 7 Denton TX 5562 METROPCS, INC. 552      
940-300 8 Denton TX 5562 METROPCS, INC. 552      
940-300 9 Denton TX 6529 T-MOBILE USA, INC. 552      
940-301 1 Gainesville TX 5562 METROPCS, INC. 552   2014-11-17   
940-301 2 Gainesville TX 6529 T-MOBILE USA, INC. 552   2022-07-16   
940-301 9 Gainesville TX 6529 T-MOBILE USA, INC. 552   2014-08-01   
940-304 6 Denton TX 6529 T-MOBILE USA, INC. 552   2017-01-07   
940-304 7 Denton TX 6529 T-MOBILE USA, INC. 552   2017-01-07   
940-312 4 Denton PPCP TX 6529 T-MOBILE USA, INC. 552   2025-09-01   
940-312 8 Denton PPCP TX 6529 T-MOBILE USA, INC. 552   2008-04-04   
940-312 9 Denton PPCP TX 6529 T-MOBILE USA, INC. 552   2008-02-04   
940-315 0 Denton TX 6529 T-MOBILE USA, INC. 552   2015-07-04   
940-315 1 Denton TX 6529 T-MOBILE USA, INC. 552   2015-07-04   
940-315 3 Denton TX 6529 T-MOBILE USA, INC. 552   2015-03-03   
940-315 5 Denton TX 6529 T-MOBILE USA, INC. 552   2015-03-03   
940-326 1 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2021-06-20   
940-326 2 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2022-10-12   
940-331 2 Denton TX 6529 T-MOBILE USA, INC. 552   2021-08-31   
940-331 4 Denton TX 6529 T-MOBILE USA, INC. 552   2021-08-31   
940-331 8 Denton TX 6529 T-MOBILE USA, INC. 552   2019-10-06   
940-334 6 Denton TX 6529 T-MOBILE USA, INC. 552   2023-12-07   
940-336 5 Gainesville TX 6529 T-MOBILE USA, INC. 552   2022-07-16   
940-344 A Lake Dallas TX 6529 T-MOBILE USA, INC. 552      
940-344 0 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2022-11-17   
940-344 1 Lake Dallas TX 6529 T-MOBILE USA, INC. 552   2022-11-17   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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