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 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
346-267 6 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-267 7 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-267 8 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-267 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-272 A HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-272 0 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-272 1   515J IP HORIZON LLC 560      
346-272 2 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-272 3 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
346-272 4 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
346-272 5 HSTOTX46DS0  7239 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 560      
346-272 6 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-272 7 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-272 8   515J IP HORIZON LLC 560      
346-272 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 0 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 1 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 2 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 3 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 4 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 5 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 6 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 7 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 8 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-274 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-281 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 2 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 3 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-281 9 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-286 A HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 0 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 1 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 2 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 3 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 4 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 5 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 6 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 7 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 8 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-286 9 HSTNTXCADS0  9533 SOUTHWESTERN BELL 560      
346-293 A HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-293 0 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-293 1 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-293 2 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-293 3 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-293 4 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-293 5 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-293 6 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-293 7 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
346-293 8 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-293 9 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-294 A HSTZTX16DS0  763H IP GLOBAL NETWORKS - TX 560      
346-294 0 HSTZTX16DS0  763H IP GLOBAL NETWORKS - TX 560      
346-294 1 HSTZTX16DS0  763H IP GLOBAL NETWORKS - TX 560      
346-294 2 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-294 3 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-294 4 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-294 5 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-294 6 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-294 7 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-294 8 HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-294 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-299 A HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 0 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 1 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 2 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 4 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 7 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 8 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-299 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
346-303 A HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 0 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 1 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 2 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 3 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 4 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 5 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 6 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 7 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 8 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-303 9 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-308 A HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560      
346-308 0 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-308 1 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-308 2 HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560      
346-308 3 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-308 4 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-308 5 HSTNTX01X7X  516C AT&T CORP. 560      
346-308 6 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 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.