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 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
281-576 1 Mont Belvieu TX HSTQTX02DS4  560   2006-03-19   
281-576 7 Mont Belvieu TX HSTQTX02DS4  560   2002-08-30   
281-576 9 Mont Belvieu TX HSTQTX02DS4  560   2006-03-19   
281-581 1 Liverpool TX HSTQTX02DS4  560   2008-02-13   
281-581 5 Liverpool TX HSTQTX02DS4  560   2008-02-13   
281-601 1 Porter TX HSTQTX02DS4  560   2006-09-11   
281-601 4 Porter TX HSTQTX02DS4  560   2008-04-28   
281-602 0 Spring TX HSTQTX02DS4  560      
281-602 3 Spring TX HSTQTX02DS4  560      
281-602 4 Spring TX HSTQTX02DS4  560      
281-602 5 Spring TX HSTQTX02DS4  560      
281-606 0 Houston Suburban TX HSTQTX02DS4  560   2009-06-21   
281-606 5 Houston Suburban TX HSTQTX02DS4  560   2008-05-20   
281-609 0 Sheldon TX HSTQTX02DS4  560   2008-01-31   
281-616 3 Barker TX HSTQTX02DS4  560   2008-01-29   
281-616 8 Barker TX HSTQTX02DS4  560   2008-02-13   
281-616 9 Barker TX HSTQTX02DS4  560   2008-02-13   
281-617 1 Houston Suburban TX HSTQTX02DS4  560   2006-06-30   
281-617 2 Houston Suburban TX HSTQTX02DS4  560   2006-06-30   
281-619 8 Houston Suburban TX HSTQTX02DS4  560   2009-06-23   
281-622 4 Cleveland TX HSTQTX02DS4  560   2002-06-04   
281-628 2 Baytown TX HSTQTX02DS4  560   2012-02-19   
281-640 2 Satsuma TX HSTQTX02DS4  560      
281-640 3 Satsuma TX HSTQTX02DS4  560      
281-644 0 Katy EMS TX HSTQTX02DS4  560   2005-12-12   
281-645 A Westfield TX HSTQTX02DS4  560      
281-645 6 Westfield TX HSTQTX02DS4  560      
281-652 5 Houston TX HSTQTX02DS4  560   2002-12-15   
281-653 7 Satsuma TX HSTQTX02DS4  560   2005-05-02   
281-653 8 Satsuma TX HSTQTX02DS4  560   2005-05-02   
281-654 7 Bammel TX HSTQTX02DS4  560   2019-10-08   
281-654 8 Bammel TX HSTQTX02DS4  560   2019-10-08   
281-656 1 Langham Creek TX HSTQTX02DS4  560   2005-12-12   
281-657 6 Houston TX HSTQTX02DS4  560   2004-12-06   
281-657 7 Houston TX HSTQTX02DS4  560   2004-12-06   
281-661 A Houston TX HSTQTX02DS4  560      
281-661 1 Houston TX HSTQTX02DS4  560   2010-06-13   
281-661 2 Houston TX HSTQTX02DS4  560   2009-05-25   
281-661 7 Houston TX HSTQTX02DS4  560   2010-08-02   
281-661 8 Houston TX HSTQTX02DS4  560   2010-08-02   
281-667 4 Apollo TX HSTQTX02DS4  560   2004-01-13   
281-668 4 Houston Suburban TX HSTQTX02DS4  560   2003-01-22   
281-668 5 Houston Suburban TX HSTQTX02DS4  560   2004-09-13   
281-668 6 Houston Suburban TX HSTQTX02DS4  560   2005-10-23   
281-668 7 Houston Suburban TX HSTQTX02DS4  560   2005-02-09   
281-668 8 Houston Suburban TX HSTQTX02DS4  560   2005-02-09   
281-674 7 Houston Suburban TX HSTQTX02DS4  560   2008-11-25   
281-674 8 Houston Suburban TX HSTQTX02DS4  560   2008-11-25   
281-677 3 Houston Suburban TX HSTQTX02DS4  560   2008-11-25   
281-698 1 Barker TX HSTQTX02DS4  560      

<< 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 >>

Last updated: Wed, 01 Jun 2022 03:09:23 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.