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
832-525 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-12-12   
832-525 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-12-12   
832-525 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-12-12   
832-525 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-12-12   
832-525 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2010-11-07   
832-526 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-528 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-528 0   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-528 1   6701 AERIAL COMMUNICATIONS, INC. 560      
832-528 2   6701 AERIAL COMMUNICATIONS, INC. 560      
832-528 3   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-528 4   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-528 5   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-528 6   6701 AERIAL COMMUNICATIONS, INC. 560      
832-528 7   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-528 8   6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-528 9   6701 AERIAL COMMUNICATIONS, INC. 560      
832-530 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-530 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-11-07   
832-530 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2012-11-07   
832-530 2   6701 AERIAL COMMUNICATIONS, INC. 560   2012-11-11   
832-530 3   6701 AERIAL COMMUNICATIONS, INC. 560   2012-11-11   
832-530 4   318J COMCAST IP PHONE, LLC 560   2012-11-06   
832-530 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-11-03   
832-530 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-11-03   
832-530 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-11-03   
832-530 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-11-03   
832-530 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-11-03   
832-531 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-531 0   6701 AERIAL COMMUNICATIONS, INC. 560   2007-11-09   
832-531 1   6701 AERIAL COMMUNICATIONS, INC. 560   2007-11-09   
832-531 2   6701 AERIAL COMMUNICATIONS, INC. 560   2007-11-09   
832-531 3   6701 AERIAL COMMUNICATIONS, INC. 560   2007-11-09   
832-531 4   6701 AERIAL COMMUNICATIONS, INC. 560   2007-11-09   
832-531 5   6701 AERIAL COMMUNICATIONS, INC. 560   2007-11-09   
832-531 6   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2008-10-26   
832-531 7   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2008-10-26   
832-531 8   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2008-10-26   
832-531 9   6701 AERIAL COMMUNICATIONS, INC. 560   2007-11-09   
832-533 A HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-533 0   6701 AERIAL COMMUNICATIONS, INC. 560   2005-06-12   
832-533 1   6701 AERIAL COMMUNICATIONS, INC. 560   2005-06-12   
832-533 2   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-05-08   
832-533 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-05-08   
832-533 4   6701 AERIAL COMMUNICATIONS, INC. 560   2005-06-12   
832-533 5   6701 AERIAL COMMUNICATIONS, INC. 560   2005-06-12   
832-533 6   6701 AERIAL COMMUNICATIONS, INC. 560   2005-06-12   
832-533 7   6701 AERIAL COMMUNICATIONS, INC. 560   2005-06-12   
832-533 8   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-10-08   
832-533 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2005-10-08   
832-537 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-537 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-10-26   
832-537 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-10-26   
832-537 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-10-26   
832-537 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-10-26   
832-537 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-10-26   
832-537 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-10-26   
832-537 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-10-27   
832-537 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-11-23   
832-537 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-11-23   
832-537 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2008-11-23   
832-538 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-538 0   318J COMCAST IP PHONE, LLC 560   2011-09-09   
832-538 1   318J COMCAST IP PHONE, LLC 560   2011-09-09   
832-538 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-08-12   
832-538 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-08-12   
832-538 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-08-12   
832-538 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-08-12   
832-538 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-08-12   
832-538 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-08-12   
832-538 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-08-12   
832-538 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-08-12   
832-540 A HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-540 0   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-01-16   
832-540 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-01-16   
832-540 2   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-01-16   
832-540 3   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-02-28   
832-540 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-02-28   
832-540 5   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-11-24   
832-540 6   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-11-24   
832-540 7   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-11-24   
832-540 8   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-11-24   
832-540 9   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-11-24   
832-541 A HSTDTXBGBMD  5562 METROPCS, INC. 560      
832-541 0   5562 METROPCS, INC. 560      
832-541 1   5562 METROPCS, INC. 560      
832-541 2   5562 METROPCS, INC. 560      
832-541 3   5562 METROPCS, INC. 560      
832-541 4   5562 METROPCS, INC. 560      
832-541 5   5562 METROPCS, INC. 560      
832-541 6   5562 METROPCS, INC. 560      
832-541 7   5562 METROPCS, INC. 560      
832-541 8   5562 METROPCS, INC. 560      
832-541 9   6701 AERIAL COMMUNICATIONS, INC. 560      
832-542 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-542 0   6701 AERIAL COMMUNICATIONS, INC. 560   2013-06-10   
832-542 1   6701 AERIAL COMMUNICATIONS, INC. 560   2013-06-10   
832-542 2   6701 AERIAL COMMUNICATIONS, INC. 560   2013-06-10   
832-542 3   6701 AERIAL COMMUNICATIONS, INC. 560   2013-06-10   
832-542 4   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2009-09-20   

<< 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: Execulink Telecom

Like this site? We accept donations via PayPal.