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: 903C ONVOY, 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
281-626 3 Rosharon TX   560   2020-08-05   
281-626 4 Rosharon TX   560   2020-08-05   
281-626 5 Rosharon TX   560   2020-09-18   
281-626 6 Rosharon TX   560   2024-09-15   
281-626 7 Rosharon TX   560   2020-09-18   
281-626 8 Rosharon TX   560   2020-09-18   
281-640 8 Satsuma TX   560   2003-10-01   
281-643 A Manvel TX   560      
281-643 2 Manvel TX   560      
281-643 3 Manvel TX   560   2013-01-10   
281-643 4 Manvel TX   560      
281-643 5 Manvel TX   560      
281-643 6 Manvel TX   560   2013-01-10   
281-645 2 Westfield TX   560   2008-05-01   
281-645 3 Westfield TX   560   2008-05-01   
281-645 5 Westfield TX   560   2016-04-04   
281-652 8 Houston TX   560   2009-02-11   
281-661 5 Houston TX   560   2010-06-21   
281-661 6 Houston TX   560   2010-07-16   
281-664 A Satsuma TX   560      
281-664 0 Satsuma TX   560      
281-664 1 Satsuma TX   560      
281-664 2 Satsuma TX   560      
281-664 3 Satsuma TX   560      
281-664 5 Satsuma TX   560      
281-664 6 Satsuma TX   560      
281-664 7 Satsuma TX   560      
281-664 8 Satsuma TX   560      
281-666 2 Crosby TX   560   2018-05-02   
281-666 6 Crosby TX   560   2017-04-05   
281-669 0 Houston TX   560   2004-11-05   
281-670 7 Houston Suburban TX   560   2008-08-21   
281-670 8 Houston Suburban TX   560   2008-08-21   
281-670 9 Houston Suburban TX   560   2011-06-17   
281-672 8 League City TX   560   2016-03-14   
281-672 9 League City TX   560   2016-03-14   
281-673 3 Bammel TX   560   2009-02-11   
281-673 4 Bammel TX   560   2009-12-08   
281-674 3 Houston Suburban TX   560   2008-08-21   
281-674 4 Houston Suburban TX   560   2008-08-21   
281-674 5 Houston Suburban TX   560   2008-08-21   
281-674 9 Houston Suburban TX   560   2011-06-17   
281-677 6 Houston Suburban TX   560   2011-06-17   
281-677 8 Houston Suburban TX   560   2009-02-11   
281-680 A Deer Park TX   560      
281-680 1 Deer Park TX   560      
281-680 4 Deer Park TX   560      
281-680 6 Deer Park TX   560      
281-680 8 Deer Park TX   560      
281-688 1 Highlands TX   560   2018-09-07   
281-688 2 Highlands TX   560   2018-09-07   
281-688 6 Highlands TX   560   2019-12-05   
281-688 8 Highlands TX   560   2019-12-05   
281-694 A Seabrook TX   560      
281-694 0 Seabrook TX   560      
281-694 1 Seabrook TX   560      
281-694 2 Seabrook TX   560      
281-694 3 Seabrook TX   560      
281-694 6 Seabrook TX   560      
281-694 8 Seabrook TX   560      
281-695 A Channelview TX   560      
281-695 8 Channelview TX   560      
281-695 9 Channelview TX   560      
281-697 A Sugar Land TX HSTNTXYADS5  560      
281-697 2 Sugar Land TX   560   2021-02-23   
281-697 4 Sugar Land TX   560   2021-02-21   
281-697 5 Sugar Land TX   560   2021-02-21   
281-697 6 Sugar Land TX   560   2021-02-21   
281-697 7 Sugar Land TX   560   2021-02-21   
281-698 2 Barker TX   560   2017-07-04   
281-698 8 Barker TX   560   2003-10-25   
281-698 9 Barker TX   560   2024-05-11   
281-699 A Crosby TX BYTWTXXAHMD  560      
281-699 1 Crosby TX   560   2021-04-12   
281-699 2 Crosby TX   560   2021-04-12   
281-699 3 Crosby TX   560   2021-07-17   
281-699 4 Crosby TX   560   2021-07-17   
281-699 8 Crosby TX   560   2021-03-06   
281-699 9 Crosby TX   560   2021-03-06   
281-709 2 Apollo TX   560   2014-10-04   
281-710 0 Arcola TX   560   2015-12-08   
281-710 6 Arcola TX   560   2015-12-08   
281-715 4 Deer Park TX   560   2005-05-27   
281-716 3 Bammel TX   560   2009-02-11   
281-716 6 Bammel TX   560   2010-07-10   
281-717 6 Barker TX   560   2014-10-06   
281-721 0 Houston Suburban TX   560   2020-10-10   
281-721 5 Houston Suburban TX   560   2009-02-11   
281-729 0 Dickinson TX   560   2020-09-18   
281-729 4 Dickinson TX   560   2019-10-07   
281-729 5 Dickinson TX   560   2019-10-07   
281-729 6 Dickinson TX   560   2019-10-07   
281-729 8 Dickinson TX   560   2019-07-11   
281-729 9 Dickinson TX   560   2019-07-11   
281-742 1 Westfield TX   560   2010-11-15   
281-745 9 Houston TX   560   2005-03-27   
281-746 6 Cypress TX   560   2014-10-17   
281-747 1 Porter TX   560   2013-01-10   
281-749 5 Houston Suburban TX   560   2009-02-11   
281-750 8 Richmond-Rosenberg TX   560   2004-01-03   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 >>

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.