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.

OCN: 004F BANDWIDTH.COM CLEC, LLC - TX

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
281-310 1 Houston Suburban TX HSTNTXGI0MD  560   2011-04-28   
281-315 9 Bammel TX HSTNTXGI0MD  560   2013-03-14   
281-317 0 Friendswood TX HSTNTXGI0MD  560   2010-03-11   
281-317 7 Friendswood TX HSTNTXGI0MD  560   2010-03-11   
281-318 5 Humble TX HSTNTXGI1MD  560   2009-02-26   
281-318 6 Humble TX HSTNTXGI1MD  560   2009-02-26   
281-344 2 Richmond-Rosenberg EMS TX HSTNTXGI0MD  560   2014-04-10   
281-346 3 Valley Lodge EMS TX HSTNTXGI1MD  560   2010-11-28   
281-356 0 Pinehurst EMS TX HSTNTXGI0MD  560   2014-12-25   
281-371 9 Katy EMS TX HSTNTXGI1MD  560   2009-02-26   
281-393 7 Liverpool EMS TX HSTNTXGI0MD  560   2014-04-10   
281-393 8 Liverpool EMS TX HSTNTXGI1MD  560   2010-11-28   
281-400 1 Friendswood TX HSTNTXGI0MD  560   2010-08-07   
281-402 9 La Porte TX HSTNTXGI0MD  560   2011-02-24   
281-406 0 Houston Suburban TX HSTNTXGI0MD  560   2011-04-28   
281-406 1 Houston Suburban TX HSTNTXGI0MD  560   2011-04-28   
281-406 3 Houston Suburban TX HSTNTXGI0MD  560   2011-04-28   
281-407 0 Houston TX HSTNTXGI1MD  560   2011-07-12   
281-407 1 Houston TX HSTNTXGI1MD  560   2011-07-12   
281-407 4 Houston TX HSTNTXGI1MD  560   2011-07-12   
281-407 5 Houston TX HSTNTXGI1MD  560   2011-07-12   
281-407 6 Houston TX HSTNTXGI1MD  560   2011-07-12   
281-407 7 Houston TX HSTNTXGI1MD  560   2011-07-12   
281-407 9 Houston TX HSTNTXGI1MD  560   2011-07-12   
281-408 2 Bammel TX HSTNTXGI0MD  560   2013-03-14   
281-410 1 Stafford TX HSTNTXGI0MD  560   2010-03-18   
281-410 2 Stafford TX HSTNTXGI0MD  560   2010-06-24   
281-410 5 Stafford TX HSTNTXGI1MD  560   2009-02-26   
281-410 8 Stafford TX HSTNTXGI1MD  560   2010-11-18   
281-417 8 La Porte TX HSTNTXGI0MD  560   2010-03-18   
281-436 9 Houston Suburban TX HSTNTXGI0MD  560   2011-04-28   
281-454 3 Houston Suburban TX HSTNTXGI0MD  560   2011-04-28   
281-500 5 Langham Creek TX HSTNTXGI0MD  560   2024-10-06   
281-503 1 Porter Heights TX HSTNTXGI0MD  560   2015-02-14   
281-503 4 Porter Heights TX HSTNTXGI0MD  560   2015-08-31   
281-503 8 Porter Heights TX HSTNTXGI0MD  560   2018-05-27   
281-504 7 Houston Suburban TX HSTNTXGI0MD  560   2011-04-28   
281-506 4 Houston Suburban TX HSTNTXGI0MD  560   2011-04-28   
281-516 5 Tomball TX HSTNTXGI0MD  560   2010-09-03   
281-516 8 Tomball TX HSTNTXGI0MD  560   2013-03-15   
281-519 0 Manvel TX HSTNTXGI0MD  560   2011-02-24   
281-542 8 Deer Park TX HSTNTXGI0MD  560   2011-10-11   
281-544 0 Houston Suburban TX HSTNTXGI0MD  560   2011-05-22   
281-545 7 Smithers Lake TX HSTNTXGI0MD  560   2010-10-28   
281-547 2 Tomball TX HSTNTXGI0MD  560   2020-11-12   
281-547 3 Tomball TX HSTNTXGI0MD  560   2020-11-12   
281-547 4 Tomball TX HSTNTXGI0MD  560   2020-11-12   
281-549 3 Kemah TX HSTNTXGI1MD  560   2009-02-26   
281-560 3 Houston Suburban TX HSTNTXGI0MD  560   2011-02-24   
281-562 7 Bammel TX HSTNTXGI0MD  560   2019-05-16   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 >>

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.