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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
956-696 4 Rio Grande City TX   568   2021-12-24   
956-696 9 Rio Grande City TX   568   2023-08-12   
956-697 A Port Isabel TX HRLNTXHGX1X  568      
956-697 7 Port Isabel TX   568   2021-10-16   
956-697 8 Port Isabel TX   568   2021-10-16   
956-705 2 Pharr TX   568   2023-05-30   
956-705 3 Pharr TX   568   2023-07-09   
956-705 4 Pharr TX   568   2023-07-09   
956-705 6 Pharr TX   568   2024-03-01   
956-705 7 Pharr TX   568   2024-03-01   
956-705 8 Pharr TX   568   2023-08-14   
956-705 9 Pharr TX   568   2023-08-14   
956-707 1 Lyford TX   568   2017-05-02   
956-707 3 Lyford TX   568   2020-08-24   
956-707 4 Lyford TX   568   2020-08-24   
956-707 7 Lyford TX   568   2021-06-03   
956-707 8 Lyford TX   568   2021-06-03   
956-709 A Brownsville TX HRLNTXHGX1X  568      
956-709 2 Brownsville TX   568   2023-09-18   
956-709 3 Brownsville TX   568   2023-09-18   
956-710 2 Harlingen TX   568   2020-08-24   
956-710 3 Harlingen TX   568   2020-08-24   
956-710 4 Harlingen TX   568   2020-08-24   
956-710 5 Harlingen TX   568   2020-08-24   
956-710 6 Harlingen TX   568   2020-08-24   
956-713 6 McAllen TX   568   2024-03-01   
956-713 7 McAllen TX   568   2024-03-01   
956-713 8 McAllen TX   568   2023-10-16   
956-713 9 McAllen TX   568   2024-02-04   
956-719 A Rio Hondo TX HRLNTXHGX1X  568   2024-07-06   
956-719 0 Rio Hondo TX   568   2024-07-06   
956-733 9 Weslaco TX   568   2021-11-25   
956-736 1 Laredo TX   566   2023-09-02   
956-737 8 Zapata TX   568   2024-04-05   
956-738 A Rio Grande City TX HRLNTXHGX1X  568      
956-738 0 Rio Grande City TX   568   2024-06-07   
956-738 2 Rio Grande City TX   568   2023-10-23   
956-738 3 Rio Grande City TX   568   2024-03-03   
956-738 4 Rio Grande City TX   568   2024-03-03   
956-741 A Mercedes TX HRLNTXHGX1X  568      
956-741 0 Mercedes TX   568   2024-06-07   
956-741 1 Mercedes TX   568   2025-05-10   
956-741 2 Mercedes TX   568   2023-10-23   
956-741 3 Mercedes TX   568   2024-03-03   
956-741 4 Mercedes TX   568   2024-03-03   
956-745 A Falcon Heights TX HRLNTXHGX1X  568      
956-745 2 Falcon Heights TX   568   2023-11-05   
956-746 3 Raymondville TX   568   2021-07-24   
956-746 4 Raymondville TX   568   2021-07-24   
956-748 8 Rio Hondo TX   568   2024-03-03   
956-749 A Laredo TX SNANTXDIRMD  566   2025-02-03   
956-749 0 Laredo TX   566   2025-02-03   
956-751 1 Zapata TX   568   2024-03-02   
956-758 4 Encinal TX   566   2020-08-13   
956-758 7 Encinal TX   566   2020-08-13   
956-758 9 Encinal TX   566   2020-08-13   
956-759 4 Raymondville TX   568   2024-03-03   
956-766 4 Mission TX   568   2017-05-03   
956-770 9 Laredo TX   566   2024-11-11   
956-779 1 Sullivan City TX   568   2022-12-22   
956-779 8 Sullivan City TX   568   2023-08-14   
956-788 0 San Benito TX   568   2024-02-29   
956-788 3 San Benito TX   568   2024-02-29   
956-804 3 Brownsville TX   568   2024-03-09   
956-804 7 Brownsville TX   568   2024-02-24   
956-804 8 Brownsville TX   568   2024-02-24   
956-804 9 Brownsville TX   568   2024-02-24   
956-805 5 Weslaco TX   568   2024-02-26   
956-805 6 Weslaco TX   568   2024-02-26   
956-805 7 Weslaco TX   568   2024-02-26   
956-805 8 Weslaco TX   568   2024-02-26   
956-805 9 Weslaco TX   568   2024-02-26   
956-807 1 Donna TX   568   2024-02-29   
956-807 2 Donna TX   568   2024-02-29   
956-807 3 Donna TX   568   2024-02-29   
956-807 8 Donna TX   568   2024-02-29   
956-807 9 Donna TX   568   2024-02-29   
956-810 0 Laredo TX   566   2025-05-03   
956-815 A Laredo TX SNANTXDIRMD  566      
956-815 0 Laredo TX   566   2016-02-08   
956-815 1 Laredo TX   566   2016-02-08   
956-815 2 Laredo TX   566   2016-02-08   
956-819 A Laredo TX   566   2025-12-07   
956-819 0 Laredo TX   566   2025-12-07   
956-828 2 McAllen TX   568   2023-06-23   
956-828 3 McAllen TX   568   2023-07-23   
956-828 4 McAllen TX   568   2023-07-23   
956-828 5 McAllen TX   568   2023-08-14   
956-828 6 McAllen TX   568   2023-08-14   
956-828 8 McAllen TX   568   2026-01-10   
956-837 1 Pharr TX   568   2023-01-04   
956-837 2 Pharr TX   568   2023-01-04   
956-840 2 Brownsville TX   568   2023-07-11   
956-840 3 Brownsville TX   568   2023-07-11   
956-840 4 Brownsville TX   568   2023-07-11   
956-840 5 Brownsville TX   568   2023-08-14   
956-847 5 Roma TX   568   2025-04-12   
956-848 8 Falcon Heights TX   568   2021-09-06   
956-855 6 McAllen TX   568   2021-12-24   
956-855 7 McAllen TX   568   2021-12-24   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 >>

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.