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
346-384 0 Apollo TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-05-02   
346-384 1 Apollo TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2019-05-20   
346-384 2 Apollo TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2019-05-20   
346-384 3 Apollo TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2019-05-20   
346-384 4 Apollo TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2019-05-20   
346-384 5 Apollo TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2019-05-20   
346-384 6 Apollo TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2019-05-20   
346-384 7 Apollo TX   7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2019-05-20   
346-384 8 Apollo TX   903C ONVOY, LLC - TX 560   2020-01-30   
346-384 9 Apollo TX   903C ONVOY, LLC - TX 560   2020-01-30   
346-385 A Friendswood TX HSTNTXMOX7X  318J COMCAST IP PHONE, LLC 560      
346-385 0 Friendswood TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-05-24   
346-385 1 Friendswood TX   318J COMCAST IP PHONE, LLC 560   2019-05-11   
346-385 2 Friendswood TX   903C ONVOY, LLC - TX 560   2020-01-30   
346-385 3 Friendswood TX   903C ONVOY, LLC - TX 560   2020-01-30   
346-385 4 Friendswood TX   903C ONVOY, LLC - TX 560   2020-01-30   
346-385 5 Friendswood TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2020-03-25   
346-385 7 Friendswood TX   318J COMCAST IP PHONE, LLC 560   2021-09-03   
346-385 8 Friendswood TX   197D VONAGE AMERICA LLC 560   2022-09-11   
346-385 9 Friendswood TX   177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2021-01-13   
346-386 A Spring TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-386 0 Spring TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-06-16   
346-386 1 Spring TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2019-06-24   
346-386 2 Spring TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2019-06-24   
346-386 3 Spring TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2019-06-24   
346-386 4 Spring TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-08-14   
346-386 5 Spring TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-08-14   
346-386 6 Spring TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2020-02-24   
346-386 7 Spring TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-08-14   
346-386 8 Spring TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-05-10   
346-386 9 Spring TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2021-05-10   
346-387 A Katy TX HSTOTXORDS1  2091 ETS TELEPHONE COMPANY, INC. 560      
346-387 0 Katy TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-09-23   
346-387 1 Katy TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-09-23   
346-387 2 Katy TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-09-23   
346-387 3 Katy TX   792K CHARTER IP ENABLED SERVICES, LLC 560   2016-07-23   
346-387 4 Katy TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-09-23   
346-387 5 Katy TX   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2016-09-23   
346-387 6 Katy TX   318J COMCAST IP PHONE, LLC 560   2016-04-10   
346-387 7 Katy TX   2091 ETS TELEPHONE COMPANY, INC. 560   2016-04-09   
346-387 8 Katy TX   2091 ETS TELEPHONE COMPANY, INC. 560   2016-04-09   
346-387 9 Katy TX   318J COMCAST IP PHONE, LLC 560   2016-11-10   
346-388 A Houston TX HSTNTXGI0MD  004F BANDWIDTH.COM CLEC, LLC - TX 560      
346-388 0 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-09-21   
346-388 1 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-09-21   
346-388 2 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-09-21   
346-388 3 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-09-21   
346-388 4 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-09-21   
346-388 5 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-09-21   
346-388 6 Houston TX   004F BANDWIDTH.COM CLEC, LLC - TX 560   2019-09-21   

<< 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, 29 Jan 2026 14:35:03 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.