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
346-446 3   6701 AERIAL COMMUNICATIONS, INC. 560   2019-06-08   
346-446 4   318J COMCAST IP PHONE, LLC 560   2019-03-15   
346-446 5   318J COMCAST IP PHONE, LLC 560   2019-03-15   
346-446 6   318J COMCAST IP PHONE, LLC 560   2019-03-15   
346-446 7   6701 AERIAL COMMUNICATIONS, INC. 560   2019-06-08   
346-446 8   6701 AERIAL COMMUNICATIONS, INC. 560   2019-06-08   
346-446 9   6701 AERIAL COMMUNICATIONS, INC. 560   2019-06-08   
346-448 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-448 0   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-448 1   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-448 2   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-448 3   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-448 4   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-448 5   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-448 6   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-448 7   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-448 8   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-448 9   6701 AERIAL COMMUNICATIONS, INC. 560   2020-12-25   
346-451 A HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560      
346-451 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-05-14   
346-451 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-28   
346-451 2   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-28   
346-451 3   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-28   
346-451 4   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-28   
346-451 5   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-28   
346-451 6   6701 AERIAL COMMUNICATIONS, INC. 560   2022-01-26   
346-451 7   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2021-01-18   
346-451 8   6701 AERIAL COMMUNICATIONS, INC. 560   2022-01-26   
346-451 9   6701 AERIAL COMMUNICATIONS, INC. 560   2022-01-26   
346-453 A   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-453 0   6701 AERIAL COMMUNICATIONS, INC. 560   2022-01-26   
346-453 1   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2025-12-08   
346-453 2   6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-28   
346-453 3   6701 AERIAL COMMUNICATIONS, INC. 560   2021-12-28   
346-453 4   903C ONVOY, LLC - TX 560   2022-01-14   
346-453 5   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-01-19   
346-453 6   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-01-19   
346-453 7   516J TON80 COMMUNICATIONS, LLC 560   2022-02-04   
346-453 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-01-19   
346-453 9   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2022-01-19   
346-455 A HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-455 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-08   
346-455 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-08   
346-455 2   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-08   
346-455 3   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-08   
346-455 4   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-08   
346-455 5   965H FRACTEL, LLC 560   2021-01-16   
346-455 6   145J TERRA NOVA TELECOM INC. 560   2024-08-15   
346-455 7   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2021-04-08   
346-455 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2024-10-04   
346-455 9   490J DISH WIRELESS, LLC 560   2024-10-25   
346-469 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-469 0   624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 1   624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 2   624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 3   624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 4   624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 5   624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 6   624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 7   624H ONVOY SPECTRUM, LLC 560   2023-07-31   
346-469 8   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2023-09-29   
346-469 9   6701 AERIAL COMMUNICATIONS, INC. 560   2022-11-05   
346-473 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-473 0   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 1   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 2   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 3   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 4   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 5   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 6   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 7   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 8   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-473 9   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-475 0   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 1   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 2   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 3   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 4   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 5   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 6   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 7   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 8   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-475 9   6701 AERIAL COMMUNICATIONS, INC. 560   2021-08-13   
346-492 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-492 0   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-492 1   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-492 2   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-492 3   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-492 4   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-492 5   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-492 6   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-492 7   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-492 8   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-492 9   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-494 A HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560      
346-494 0   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-494 1   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-494 2   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   
346-494 3   6701 AERIAL COMMUNICATIONS, INC. 560   2021-10-14   

<< 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: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.