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.

NPA: 346 [Rate centres in NPA 346] [Dial plan for NPA 346]

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-978 5 Langham Creek TX HSTNTX01X7X  516C AT&T CORP. 560   2015-06-04   
346-978 6 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-11-05   
346-978 7 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2017-11-05   
346-978 8 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2017-10-30   
346-978 9 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2017-10-30   
346-980 A Houston TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-980 0 Houston TX   903C ONVOY, LLC - TX 560   2015-05-02   
346-980 1 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2015-05-09   
346-980 2 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-07-02   
346-980 3 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2015-05-09   
346-980 4 Houston TX   6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2015-05-02   
346-980 5 Houston TX HSTNTX01X7X  516C AT&T CORP. 560   2015-05-02   
346-980 6 Houston TX HSTNTX01X7X  516C AT&T CORP. 560   2015-05-02   
346-980 7 Houston TX HSTNTX01X7X  516C AT&T CORP. 560   2015-05-02   
346-980 8 Houston TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560   2015-05-02   
346-980 9 Houston TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560   2015-05-09   
346-988 A Cleveland TX HSTNTXJAXBY  965H FRACTEL, LLC 560      
346-988 0 Cleveland TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2020-05-31   
346-988 1 Cleveland TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-04   
346-988 2 Cleveland TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-01-30   
346-988 3 Cleveland TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-01-30   
346-988 4 Cleveland TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-01-30   
346-988 5 Cleveland TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-05-11   
346-988 6 Cleveland TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-05-11   
346-988 7 Cleveland TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-09-04   
346-988 8 Cleveland TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2019-07-17   
346-988 9 Cleveland TX HSTDTXBGBMD  6701 AERIAL COMMUNICATIONS, INC. 560   2020-02-21   
346-998 A Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560      
346-998 0 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-998 1 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-998 2 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-998 3 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-998 4 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-998 5 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-998 6 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-998 7 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-998 8 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-998 9 Houston TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2016-12-10   
346-999 A Huffman TX HSTNTXJADS6  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560      
346-999 0 Huffman TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2020-08-22   
346-999 1 Huffman TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2018-12-27   
346-999 2 Huffman TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2019-02-18   
346-999 3 Huffman TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2020-07-19   
346-999 4 Huffman TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2020-07-19   
346-999 5 Huffman TX HSTNTXJAXBY  965H FRACTEL, LLC 560   2020-07-19   
346-999 6 Huffman TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2016-01-29   
346-999 7 Huffman TX HSTSTXJV6MD  508J CENTURYLINK COMMUNICATIONS, LLC 560   2015-05-21   
346-999 8 Huffman TX BYTWTXXAHMD  903C ONVOY, LLC - TX 560   2020-08-22   
346-999 9 Huffman TX HSTNTXJADS6  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 560   2014-07-01   

<< 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.