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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
832-387 8 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2006-07-17   
832-387 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-04-01   
832-388 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-388 0 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-388 1 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-388 2 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-388 3 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-388 4 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-388 5 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-388 6 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-388 7 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-388 8 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-388 9 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2007-07-20   
832-389 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-389 0 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-02-19   
832-389 1 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2014-09-06   
832-389 2 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2013-06-14   
832-389 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2013-05-21   
832-389 4 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-02-19   
832-389 5 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2009-06-29   
832-389 6 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2010-03-25   
832-389 7 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2010-03-25   
832-389 8 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2010-04-15   
832-389 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2010-04-15   
832-390 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-390 0 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-03-21   
832-390 1 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-03-21   
832-390 2 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2010-04-28   
832-390 3 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2010-04-28   
832-390 4 HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2010-06-17   
832-390 5 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2025-01-01   
832-390 6 HSTNTXJAXWY  732J NUSO, LLC 560   2024-12-03   
832-390 7 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-02-08   
832-390 8 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-02-08   
832-390 9 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-02-08   
832-393 A HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-394 A HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-395 A HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
832-396 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-396 0 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-01-22   
832-396 1 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2013-11-10   
832-396 2 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-01-22   
832-396 3 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-01-22   
832-396 4 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-01-22   
832-396 5 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-01-22   
832-396 6 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-01-22   
832-396 7 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-01-22   
832-396 8 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-01-22   
832-396 9 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-01-22   
832-397 A HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
832-397 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-04   
832-397 1 HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
832-397 2 HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
832-397 3 HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
832-397 4 HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
832-397 5 HSTATX750MD  829J PAETEC ITEL, LLC 560   2012-10-08   
832-397 6 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2007-10-22   
832-397 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-04   
832-397 8 HSTNTXCLDS1  9533 SOUTHWESTERN BELL 560      
832-397 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2005-12-31   
832-398 A HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
832-398 0 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2003-07-02   
832-398 1 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2003-07-02   
832-398 2 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-10-03   
832-398 3 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-10-03   
832-398 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-10-03   
832-398 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-10-03   
832-398 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-10-03   
832-398 7 HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
832-398 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-10-03   
832-398 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-10-03   
832-404 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-404 0 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-05-14   
832-404 1 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-05-14   
832-404 2 HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2013-06-14   
832-404 3 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-05-14   
832-404 4 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-05-14   
832-404 5 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-05-14   
832-404 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2013-06-14   
832-404 7 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-05-14   
832-404 8 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-05-14   
832-404 9 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-05-14   
832-405 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-405 0 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-11-09   
832-405 1 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-11-09   
832-405 2 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-11-09   
832-405 3 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-11-09   
832-405 4 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-11-09   
832-405 5 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-11-21   
832-405 6 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-12-12   
832-405 7 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-11-15   
832-405 8 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-10-26   
832-405 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2008-09-26   
832-407 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-407 0 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2006-02-17   
832-407 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-03-13   
832-407 2 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2006-02-17   
832-407 3 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-407 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-407 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 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 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.