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: 6114 LEVEL 3 COMMUNICATIONS, 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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
281-369 4 Rosharon EMS TX HSTQTX02DS4  560   2006-04-09   
281-369 5 Rosharon EMS TX HSTQTX02DS4  560   2012-04-07   
281-371 6 Katy EMS TX HSTQTX02DS4  560   2012-10-14   
281-374 2 Tomball EMS TX HSTQTX02DS4  560   2005-09-16   
281-374 4 Tomball EMS TX HSTQTX02DS4  560   2005-09-16   
281-375 4 Brookshire EMS TX HSTQTX02DS4  560   2019-08-18   
281-377 1 Bammel TX HSTQTX02DS4  560   2005-11-14   
281-377 3 Bammel TX HSTQTX02DS4  560   2005-11-14   
281-377 4 Bammel TX HSTQTX02DS4  560   2004-01-13   
281-377 5 Bammel TX HSTQTX02DS4  560   2005-03-03   
281-377 6 Bammel TX HSTQTX02DS4  560   2005-02-11   
281-377 8 Bammel TX HSTQTX02DS4  560   2006-05-08   
281-378 3 Tomball EMS TX HSTQTX02DS4  560   2007-06-19   
281-383 9 Beach City EMS TX HSTQTX02DS4  560   2005-09-12   
281-385 8 Mont Belvieu EMS TX HSTQTX02DS4  560   2006-03-19   
281-385 9 Mont Belvieu EMS TX HSTQTX02DS4  560   2005-03-03   
281-394 0 Katy EMS TX HSTQTX02DS4  560   2005-02-08   
281-394 1 Katy EMS TX HSTQTX02DS4  560   2005-02-16   
281-394 3 Katy EMS TX HSTQTX02DS4  560   2005-02-16   
281-394 4 Katy EMS TX HSTQTX02DS4  560   2002-09-04   
281-397 3 Bammel TX HSTQTX02DS4  560   2009-12-06   
281-401 9 Tomball EMS TX HSTQTX02DS4  560   2008-02-01   
281-402 3 La Porte TX HSTQTX02DS4  560   2006-04-09   
281-402 8 La Porte TX HSTQTX02DS4  560   2010-01-22   
281-404 3 Houston TX HSTQTX02DS4  560   2006-06-17   
281-404 5 Houston TX HSTQTX02DS4  560   2002-11-13   
281-404 9 Houston TX HSTQTX02DS4  560   2005-04-01   
281-407 A Houston TX HSTQTX02DS4  560      
281-407 2 Houston TX HSTQTX02DS4  560   2011-07-10   
281-407 3 Houston TX HSTQTX02DS4  560   2011-07-10   
281-408 4 Bammel TX HSTQTX02DS4  560   2008-07-25   
281-409 3 Houston TX HSTQTX02DS4  560   2008-01-25   
281-417 2 La Porte TX HSTQTX02DS4  560      
281-417 3 La Porte TX HSTQTX02DS4  560      
281-429 8 Porter Heights EMS TX HSTQTX02DS4  560   2011-06-24   
281-436 4 Houston Suburban TX HSTQTX02DS4  560   2006-05-14   
281-436 7 Houston Suburban TX HSTQTX02DS4  560   2006-12-15   
281-456 2 Sheldon TX HSTQTX02DS4  560   2007-12-13   
281-456 3 Sheldon TX HSTQTX02DS4  560   2005-01-17   
281-456 4 Sheldon TX HSTQTX02DS4  560   2002-05-08   
281-459 0 Houston Suburban TX HSTQTX02DS4  560   2006-08-31   
281-462 9 Crosby TX HSTQTX02DS4  560   2018-07-07   
281-466 4 Spring EMS TX HSTQTX02DS4  560   2002-05-08   
281-475 2 Spring TX HSTQTX02DS4  560   2008-06-02   
281-500 4 Langham Creek TX HSTQTX02DS4  560      
281-500 6 Langham Creek TX HSTQTX02DS4  560      
281-500 9 Langham Creek TX HSTQTX02DS4  560   2005-12-12   
281-503 9 Porter Heights TX HSTQTX02DS4  560   2019-05-05   
281-505 9 Katy TX HSTQTX02DS4  560   2020-07-05   
281-506 0 Houston Suburban TX HSTQTX02DS4  560   2006-05-07   

<< 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 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.