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
713-881 7 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-881 8 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-881 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2006-03-07   
713-882 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
713-883 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
713-884 A HSTNTXOXDS0  9533 SOUTHWESTERN BELL 560      
713-884 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-08-16   
713-884 1 HSTNTXOXDS0  9533 SOUTHWESTERN BELL 560      
713-884 2 HSTNTXOXDS0  9533 SOUTHWESTERN BELL 560      
713-884 3 HSTNTXOXDS0  9533 SOUTHWESTERN BELL 560      
713-884 4 HSTNTXOXDS0  9533 SOUTHWESTERN BELL 560      
713-884 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-08-16   
713-884 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-08-16   
713-884 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-08-16   
713-884 8 HSTNTXOXDS0  9533 SOUTHWESTERN BELL 560      
713-884 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-08-16   
713-885 A HSTNTXPADS0  9533 SOUTHWESTERN BELL 560      
713-885 0 HSTNTXPADS0  9533 SOUTHWESTERN BELL 560      
713-885 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-07-08   
713-885 2 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-07-08   
713-885 3 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-07-08   
713-885 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-07-08   
713-885 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-07-08   
713-885 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-07-08   
713-885 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-07-08   
713-885 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2004-07-08   
713-885 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2005-02-02   
713-886 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
713-888 A HSTNTXNADS1  9533 SOUTHWESTERN BELL 560      
713-889 A HSTNTXRIDS0  9533 SOUTHWESTERN BELL 560      
713-890 A HSTNTXCLDS2  9533 SOUTHWESTERN BELL 560      
713-890 0 HSTNTXCLDS2  9533 SOUTHWESTERN BELL 560      
713-890 1 HSTNTXCLDS2  9533 SOUTHWESTERN BELL 560      
713-890 2 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2006-02-09   
713-890 3 HSTNTXCLDS2  9533 SOUTHWESTERN BELL 560      
713-890 4 HSTNTXCLDS2  9533 SOUTHWESTERN BELL 560      
713-890 5 HSTNTXCLDS2  9533 SOUTHWESTERN BELL 560      
713-890 6 HSTNTXCLDS2  9533 SOUTHWESTERN BELL 560      
713-890 7 HSTNTXCLDS2  9533 SOUTHWESTERN BELL 560      
713-890 8 HSTNTXCLDS2  9533 SOUTHWESTERN BELL 560      
713-890 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-02-10   
713-891 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
713-892 A HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-892 0 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-892 1 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-892 2 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-892 3 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-892 4 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-892 5 HSTATX750MD  829J PAETEC ITEL, LLC 560   2014-08-20   
713-892 6 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-892 7 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-892 8 HSTNTXNADS0  9533 SOUTHWESTERN BELL 560      
713-892 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-02-10   
713-894 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
713-895 A HSTNTXFADS0  9533 SOUTHWESTERN BELL 560      
713-898 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
713-899 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
713-900 A HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
713-900 0 HSTQTXRG6MD  139F WORLDCALL INTERCONNECT INC. 560   2010-12-24   
713-900 1 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2010-11-26   
713-900 2 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2011-01-31   
713-900 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2011-01-31   
713-900 4 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2010-11-29   
713-900 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2010-11-29   
713-900 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2010-11-29   
713-900 7 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2010-11-29   
713-900 8 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2010-11-29   
713-900 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2010-11-29   
713-901 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
713-904 A HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
713-904 0 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2012-02-28   
713-904 1 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2012-05-07   
713-904 2 HSTWTXUFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2012-02-15   
713-904 3 HSTWTXUFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2012-02-15   
713-904 4 HSTWTXUFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2012-02-15   
713-904 5 HSTWTXUFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2012-02-15   
713-904 6 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2012-03-05   
713-904 7 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560   2012-02-13   
713-904 8 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2012-03-05   
713-904 9 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2012-03-05   
713-905 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
713-906 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
713-907 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
713-908 A HSTNTXMOIMD  9748 AMERICAN MESSAGING SERVICES, LLC 560      
713-910 A HSTNTXHUDS0  9533 SOUTHWESTERN BELL 560      
713-914 A HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-915 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
713-916 A SGLDTXAQ0MD  6630 USA MOBILITY WIRELESS, INC. 560      
713-917 A HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 A HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 0 HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 1 HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 2 HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 3 HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 4 HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 5 HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560   2010-07-16   
713-918 7 HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 8 HSTNTXSUDS0  9533 SOUTHWESTERN BELL 560      
713-918 9 HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2011-02-07   

<< 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, 27 Apr 2025 12:48:38 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.