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.

OCN: 903C ONVOY, LLC - 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
346-584 2 Friendswood TX HSTNTXYADS5  560   2023-07-15   
346-584 3 Friendswood TX HSTNTXYADS5  560   2022-12-12   
346-584 4 Friendswood TX HSTNTXYADS5  560   2022-12-12   
346-584 5 Friendswood TX HSTNTXYADS5  560   2023-01-15   
346-584 6 Friendswood TX HSTNTXYADS5  560   2023-01-15   
346-584 7 Friendswood TX HSTNTXYADS5  560   2023-01-15   
346-584 9 Friendswood TX HSTNTXYADS5  560   2023-10-01   
346-585 2 Stafford TX HSTNTXYADS5  560   2023-05-13   
346-585 7 Stafford TX HSTNTXYADS5  560   2023-10-01   
346-585 8 Stafford TX HSTNTXYADS5  560   2023-07-15   
346-586 0 Houston TX HSTNTXYADS5  560   2023-08-07   
346-586 1 Houston TX HSTNTXYADS5  560   2023-08-07   
346-586 2 Houston TX HSTNTXYADS5  560   2023-08-07   
346-586 4 Houston TX HSTNTXYADS5  560   2022-11-08   
346-586 5 Houston TX HSTNTXYADS5  560   2022-11-08   
346-586 6 Houston TX HSTNTXYADS5  560   2022-11-08   
346-586 7 Houston TX HSTNTXYADS5  560   2022-11-08   
346-586 8 Houston TX HSTNTXYADS5  560   2022-11-08   
346-588 7 Cypress TX HSTNTXYADS5  560   2021-10-25   
346-589 5 Spring TX HSTNTXYADS5  560   2022-12-11   
346-589 6 Spring TX HSTNTXYADS5  560   2022-12-11   
346-589 7 Spring TX HSTNTXYADS5  560   2022-12-11   
346-589 8 Spring TX HSTNTXYADS5  560   2023-01-15   
346-590 1 Westfield TX HSTNTXYADS5  560   2022-12-15   
346-590 2 Westfield TX HSTNTXYADS5  560   2022-12-15   
346-590 3 Westfield TX HSTNTXYADS5  560   2023-06-19   
346-590 5 Westfield TX HSTNTXYADS5  560   2023-05-13   
346-590 6 Westfield TX HSTNTXYADS5  560   2023-08-12   
346-590 7 Westfield TX HSTNTXYADS5  560   2023-06-19   
346-590 8 Westfield TX HSTNTXYADS5  560   2023-06-19   
346-591 0 Porter Heights TX HSTNTXYADS5  560   2023-08-07   
346-591 2 Porter Heights TX   560   2025-07-19   
346-591 8 Porter Heights TX HSTNTXYADS5  560   2023-10-14   
346-591 9 Porter Heights TX   560   2025-04-12   
346-594 0 Barker TX HSTNTXYADS5  560   2023-07-15   
346-594 5 Barker TX HSTNTXYADS5  560   2023-05-13   
346-594 6 Barker TX HSTNTXYADS5  560   2023-10-01   
346-594 7 Barker TX HSTNTXYADS5  560   2023-05-13   
346-594 8 Barker TX HSTNTXYADS5  560   2023-03-06   
346-594 9 Barker TX HSTNTXYADS5  560   2023-07-15   
346-595 2 Arcola TX HSTNTXYADS5  560   2023-05-27   
346-595 3 Arcola TX HSTNTXYADS5  560   2023-07-15   
346-595 4 Arcola TX HSTNTXYADS5  560   2023-10-14   
346-595 8 Arcola TX HSTNTXYADS5  560   2023-08-26   
346-597 1 Langham Creek TX HSTNTXYADS5  560   2022-12-17   
346-597 2 Langham Creek TX HSTNTXYADS5  560   2022-12-17   
346-597 3 Langham Creek TX HSTNTXYADS5  560   2022-12-17   
346-597 4 Langham Creek TX HSTNTXYADS5  560   2022-12-17   
346-597 5 Langham Creek TX HSTNTXYADS5  560   2022-12-17   
346-597 7 Langham Creek TX HSTNTXYADS5  560   2022-12-17   
346-597 8 Langham Creek TX HSTNTXYADS5  560   2022-12-17   
346-597 9 Langham Creek TX HSTNTXYADS5  560   2022-12-17   
346-598 1 Tomball TX HSTNTXYADS5  560   2022-12-17   
346-598 2 Tomball TX HSTNTXYADS5  560   2022-12-17   
346-598 3 Tomball TX HSTNTXYADS5  560   2022-12-17   
346-598 4 Tomball TX HSTNTXYADS5  560   2022-12-17   
346-598 5 Tomball TX HSTNTXYADS5  560   2022-12-17   
346-598 6 Tomball TX HSTNTXYADS5  560   2022-12-17   
346-598 7 Tomball TX HSTNTXYADS5  560   2022-12-17   
346-600 A Humble TX HSTNTXYADS5  560      
346-600 0 Humble TX HSTNTXYADS5  560   2015-05-25   
346-600 6 Humble TX HSTNTXYADS5  560   2015-05-25   
346-600 9 Humble TX HSTNTXYADS5  560   2015-05-25   
346-601 2 Houston TX HSTNTXYADS5  560   2022-12-20   
346-601 3 Houston TX HSTNTXYADS5  560   2022-12-20   
346-601 4 Houston TX HSTNTXYADS5  560   2022-12-20   
346-601 5 Houston TX HSTNTXYADS5  560   2022-12-20   
346-601 6 Houston TX HSTNTXYADS5  560   2022-12-20   
346-601 7 Houston TX HSTNTXYADS5  560   2022-12-20   
346-601 8 Houston TX HSTNTXYADS5  560   2023-01-11   
346-601 9 Houston TX HSTNTXYADS5  560   2023-01-11   
346-603 5 Alvin TX HSTNTXYADS5  560   2022-12-29   
346-605 8 Houston Suburban TX HSTNTXYADS5  560   2023-10-14   
346-608 0 Katy TX KATYTXXA9MD  560   2024-02-22   
346-608 7 Katy TX KATYTXXA9MD  560   2023-02-08   
346-608 8 Katy TX KATYTXXA9MD  560   2023-02-08   
346-608 9 Katy TX KATYTXXA9MD  560   2024-02-22   
346-609 1 Bammel TX HSTNTXYADS5  560   2023-06-22   
346-610 A Houston TX   560      
346-610 9 Houston TX HSTNTXYADS5  560   2019-01-19   
346-612 8 Cleveland TX HSTNTXYADS5  560   2023-07-15   
346-614 4 Houston Suburban TX HSTNTXYADS5  560   2023-02-20   
346-614 5 Houston Suburban TX HSTNTXYADS5  560   2023-02-20   
346-615 A Katy TX KATYTXXA9MD  560      
346-615 0 Katy TX KATYTXXA9MD  560   2023-09-17   
346-615 1 Katy TX KATYTXXA9MD  560   2024-02-22   
346-615 2 Katy TX KATYTXXA9MD  560   2023-07-15   
346-615 3 Katy TX KATYTXXA9MD  560   2023-03-10   
346-615 4 Katy TX KATYTXXA9MD  560   2023-03-10   
346-615 5 Katy TX KATYTXXA9MD  560   2024-02-22   
346-615 6 Katy TX KATYTXXA9MD  560   2024-02-22   
346-615 7 Katy TX KATYTXXA9MD  560   2024-02-22   
346-615 8 Katy TX KATYTXXA9MD  560   2024-05-20   
346-615 9 Katy TX KATYTXXA9MD  560   2024-06-29   
346-616 0 Humble TX HSTNTXYADS5  560   2016-03-02   
346-616 1 Humble TX HSTNTXYADS5  560   2016-03-02   
346-616 9 Humble TX HSTNTXYADS5  560   2017-11-09   
346-617 2 Dickinson TX DCSNTXXAJMD  560   2017-06-02   
346-620 3 Richmond-Rosenberg TX HSTNTXYADS5  560   2023-02-23   
346-620 4 Richmond-Rosenberg TX HSTNTXYADS5  560   2023-02-23   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 >>

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.