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.

Houston, 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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
832-691 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-691 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-09   
832-691 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-09   
832-691 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-09   
832-691 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-09   
832-691 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-09   
832-691 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-09   
832-691 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-09   
832-691 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-09   
832-691 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-09   
832-691 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-05-06   
832-693 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-693 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2004-03-25   
832-693 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2004-03-25   
832-693 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2004-03-25   
832-693 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2004-03-25   
832-693 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2004-03-25   
832-693 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2004-03-25   
832-693 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2004-03-25   
832-693 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-693 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2004-03-25   
832-693 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2004-03-25   
832-696 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-696 0   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-10-29   
832-696 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-09-26   
832-696 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-09-26   
832-696 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-09-26   
832-696 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-09-26   
832-696 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-09-26   
832-696 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-09-26   
832-696 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-09-11   
832-696 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-09-11   
832-696 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-09-11   
832-699 A HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-699 0   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-23   
832-699 1   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-23   
832-699 2   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-23   
832-699 3   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-23   
832-699 4   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-27   
832-699 5   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-27   
832-699 6   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-27   
832-699 7   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-27   
832-699 8   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-27   
832-699 9   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-12-27   
832-701 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-701 0   004F BANDWIDTH.COM CLEC, LLC - TX 560   2012-08-16   
832-701 1   903C ONVOY, LLC - TX 560   2012-07-24   
832-701 2   903C ONVOY, LLC - TX 560   2012-07-24   
832-701 3   6701 AERIAL COMMUNICATIONS, INC. 560   2012-09-06   
832-701 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-07-21   
832-701 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-07-21   
832-701 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-07-21   
832-701 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-07-21   
832-701 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-07-21   
832-701 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-07-21   
832-703 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-703 0   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-11-27   
832-703 1   004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-11-27   
832-703 2   6701 AERIAL COMMUNICATIONS, INC. 560   2010-11-17   
832-703 3   6701 AERIAL COMMUNICATIONS, INC. 560   2010-11-17   
832-703 4   6701 AERIAL COMMUNICATIONS, INC. 560   2010-11-17   
832-703 5   6701 AERIAL COMMUNICATIONS, INC. 560   2010-11-17   
832-703 6   6701 AERIAL COMMUNICATIONS, INC. 560   2010-11-17   
832-703 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-12-12   
832-703 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-10-31   
832-703 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-10-31   
832-706 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-706 0   004F BANDWIDTH.COM CLEC, LLC - TX 560   2012-09-16   
832-706 1   903C ONVOY, LLC - TX 560   2012-11-14   
832-706 2   004F BANDWIDTH.COM CLEC, LLC - TX 560   2012-09-16   
832-706 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-08-06   
832-706 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-08-06   
832-706 5   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-706 6   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-706 7   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-706 8   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-706 9   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-707 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-707 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-707 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-707 2   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-707 3   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-707 4   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-707 5   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-707 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-707 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-707 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-707 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-07-26   
832-708 A   903C ONVOY, LLC - TX 560      
832-708 0   6701 AERIAL COMMUNICATIONS, INC. 560   2012-09-06   
832-708 1   903C ONVOY, LLC - TX 560   2012-07-23   
832-708 2   829J PAETEC ITEL, LLC 560   2012-07-24   
832-708 3   829J PAETEC ITEL, LLC 560   2012-07-24   
832-708 4   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-708 5   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-708 6   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-708 7   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-708 8   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-708 9   6701 AERIAL COMMUNICATIONS, INC. 560   2012-07-24   
832-709 A HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 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 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 >>

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.