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
832-615 1 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-615 2 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-615 3 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-615 4 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-615 5 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-615 6 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-615 7 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-615 8 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-615 9   145J TERRA NOVA TELECOM INC. 560   2023-04-29   
832-618 A HSTNTXUNDS0  9533 SOUTHWESTERN BELL 560      
832-618 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2003-07-12   
832-618 1 HSTNTXUNDS0  9533 SOUTHWESTERN BELL 560      
832-618 2 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2003-07-12   
832-618 3 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2003-07-12   
832-618 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2003-07-12   
832-618 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2003-07-12   
832-618 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2003-12-22   
832-618 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2003-12-22   
832-618 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2003-12-22   
832-618 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2003-12-22   
832-622 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-622 0 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2005-10-15   
832-622 1 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2005-10-15   
832-622 2 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2005-10-15   
832-622 3 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2005-10-15   
832-622 4 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2005-10-15   
832-622 5 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2005-10-15   
832-622 6 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2005-10-15   
832-622 7 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2005-10-15   
832-622 8 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2005-10-15   
832-622 9 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2005-05-05   
832-623 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-623 0 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2005-07-08   
832-623 1 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2005-07-08   
832-623 2 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2005-07-08   
832-623 3 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2005-07-08   
832-623 4 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2005-07-08   
832-623 5 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2005-07-08   
832-623 6 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2005-07-28   
832-623 7 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2005-07-28   
832-623 8 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2005-05-09   
832-623 9 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2005-05-09   
832-624 A HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-624 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-624 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-624 2   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-624 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-624 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-624 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-624 6   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-624 7   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-624 8   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-624 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 A HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-625 0   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 1   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 2   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 3   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 4   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 5   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 6   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 7   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 8   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-625 9   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2012-11-10   
832-627 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-627 0 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-24   
832-627 1 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-24   
832-627 2 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-24   
832-627 3 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-24   
832-627 4 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-24   
832-627 5 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-24   
832-627 6 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-30   
832-627 7 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-30   
832-627 8 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-20   
832-627 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2011-05-20   
832-628 A HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-630 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-633 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-633 0 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2006-01-25   
832-633 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-633 2 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-633 3 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-633 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-633 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-633 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-633 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-633 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2006-01-20   
832-633 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-638 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-638 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-638 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-638 2 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-638 3 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-638 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-638 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-638 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-638 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-638 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-638 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2007-06-29   
832-640 A 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: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.