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.

Switch: DLLTTXID1MD

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
972-375 5 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-05-16   
972-375 6 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-05-16   
972-375 7 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-05-16   
972-375 8 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-05-16   
972-381 0 Dallas TX 6529 T-MOBILE USA, INC. 552   2019-07-18   
972-388 4 Dallas TX 5562 METROPCS, INC. 552   2011-03-24   
972-388 6 Dallas TX 5562 METROPCS, INC. 552   2011-03-24   
972-391 3 Dallas TX 6529 T-MOBILE USA, INC. 552   2011-03-24   
972-391 9 Dallas TX 5562 METROPCS, INC. 552   2011-03-24   
972-400 3 Grand Prairie EMS TX 6529 T-MOBILE USA, INC. 552   2007-08-09   
972-400 5 Grand Prairie EMS TX 6529 T-MOBILE USA, INC. 552   2007-08-09   
972-400 6 Grand Prairie EMS TX 6529 T-MOBILE USA, INC. 552   2007-08-09   
972-404 6 Dallas TX 5562 METROPCS, INC. 552   2011-03-24   
972-408 5 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-05-16   
972-408 6 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-07-05   
972-408 7 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-07-05   
972-408 8 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-07-05   
972-458 9 Dallas TX 6529 T-MOBILE USA, INC. 552   2025-06-11   
972-462 4 Lewisville TX 5562 METROPCS, INC. 552   2020-01-07   
972-464 6 Frisco EACS TX 5562 METROPCS, INC. 552   2006-07-04   
972-464 7 Frisco EACS TX 5562 METROPCS, INC. 552   2006-06-16   
972-464 8 Frisco EACS TX 5562 METROPCS, INC. 552   2006-07-04   
972-464 9 Frisco EACS TX 5562 METROPCS, INC. 552   2005-12-15   
972-469 0 Frisco TX 6529 T-MOBILE USA, INC. 552   2016-08-26   
972-469 1 Frisco TX 6529 T-MOBILE USA, INC. 552   2018-01-14   
972-469 6 Frisco TX 6529 T-MOBILE USA, INC. 552   2024-05-28   
972-469 9 Frisco TX 6529 T-MOBILE USA, INC. 552   2016-08-26   
972-477 1 Plano TX 6529 T-MOBILE USA, INC. 552   2025-05-16   
972-480 1 Dallas TX 5562 METROPCS, INC. 552   2007-07-22   
972-480 2 Dallas TX 5562 METROPCS, INC. 552   2007-07-22   
972-480 4 Dallas TX 5562 METROPCS, INC. 552   2007-07-22   
972-480 7 Dallas TX 5562 METROPCS, INC. 552   2007-07-22   
972-481 0 Dallas TX 5562 METROPCS, INC. 552   2010-03-01   
972-481 4 Dallas TX 5562 METROPCS, INC. 552   2010-03-01   
972-488 9 Dallas TX 6529 T-MOBILE USA, INC. 552   2025-06-11   
972-502 0 Dallas TX 5562 METROPCS, INC. 552   2012-02-23   
972-503 2 Dallas TX 6529 T-MOBILE USA, INC. 552   2018-05-25   
972-503 5 Dallas TX 6529 T-MOBILE USA, INC. 552   2019-07-18   
972-522 8 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-05-16   
972-522 9 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2004-07-05   
972-537 6 Lewisville TX 5562 METROPCS, INC. 552   2007-02-09   
972-537 7 Lewisville TX 5562 METROPCS, INC. 552   2007-02-09   
972-537 8 Lewisville TX 5562 METROPCS, INC. 552   2007-02-09   
972-546 8 Dallas TX 6529 T-MOBILE USA, INC. 552   2025-06-11   
972-551 9 Terrell TX 6529 T-MOBILE USA, INC. 552   2012-12-21   
972-552 0 Forney TX 6529 T-MOBILE USA, INC. 552   2012-02-04   
972-552 4 Forney TX 6529 T-MOBILE USA, INC. 552   2012-08-28   
972-572 6 Dallas TX 6529 T-MOBILE USA, INC. 552   2025-06-11   
972-589 A Grand Prairie TX 6529 T-MOBILE USA, INC. 552      
972-589 0 Grand Prairie TX 6529 T-MOBILE USA, INC. 552   2012-11-16   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.