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
832-648 4 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-648 5 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-648 6 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-648 7 HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560      
832-648 8 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-648 9 HSTDTXBG5MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-649 A HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
832-649 0 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-649 1 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-649 2 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-649 3 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-649 4 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-649 5 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-649 6 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
832-649 7 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-649 8 HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
832-649 9 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-650 A HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 0 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 1 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 2 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 4 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 6 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 7 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 8 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-650 9 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-651 A   6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 2 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 3 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-651 9   6701 AERIAL COMMUNICATIONS, INC. 560      
832-652 A HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-652 0 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-652 1 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-652 2 HSTNTX01DS5  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
832-652 3 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-652 4 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-652 5 HSTNTXYADS5  903C ONVOY, LLC - TX 560      
832-652 6 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-652 7 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-652 8 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-652 9 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-654 A   6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 0 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 2 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 3 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 4 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 5 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 7 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 8 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-654 9   6701 AERIAL COMMUNICATIONS, INC. 560      
832-655 A   6701 AERIAL COMMUNICATIONS, INC. 560      
832-655 0 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-655 1 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-655 2 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-655 3 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-655 4 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-655 5 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-655 6 HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-655 7 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-655 8 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-655 9   6701 AERIAL COMMUNICATIONS, INC. 560      
832-656 A   5562 METROPCS, INC. 560      
832-656 0 HSTDTXBG5MD  5562 METROPCS, INC. 560      
832-656 1 HSTDTXBG5MD  5562 METROPCS, INC. 560      
832-656 2 HSTDTXBG5MD  5562 METROPCS, INC. 560      
832-656 3 HSTDTXBG5MD  5562 METROPCS, INC. 560      
832-656 4 HSTDTXBG5MD  5562 METROPCS, INC. 560      
832-656 5 HSTDTXBG5MD  5562 METROPCS, INC. 560      
832-656 6 HSTDTXBG5MD  5562 METROPCS, INC. 560      
832-656 7 HSTDTXBG5MD  5562 METROPCS, INC. 560      
832-656 8 HSTDTXBG5MD  5562 METROPCS, INC. 560      
832-656 9   6701 AERIAL COMMUNICATIONS, INC. 560      
832-657 A HSTNTXHODS0  9533 SOUTHWESTERN BELL 560      
832-657 0 HSTNTXHODS0  9533 SOUTHWESTERN BELL 560      
832-657 1 HSTNTXGI1MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
832-657 2 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-657 3 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-657 4 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-657 5 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-657 6 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-657 7 HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
832-657 8 HSTNTXHODS0  9533 SOUTHWESTERN BELL 560      
832-657 9 HSTDTXBG9MD  6701 AERIAL COMMUNICATIONS, INC. 560      
832-658 A HSTNTXMCDS0  9533 SOUTHWESTERN BELL 560      
832-658 0 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-658 1 HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
832-658 2 HSTNTXSXGT0  8833 LOGIX COMMUNICATIONS CORPORATION - TX 560      
832-658 3 HSTNTXHODS0  9533 SOUTHWESTERN BELL 560      
832-658 4 HSTNTXMCDS0  9533 SOUTHWESTERN BELL 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: ISP Telecom

Like this site? We accept donations via PayPal.