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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
346-422 8 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-04-12   
346-422 9 Houston Suburban TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-04-12   
346-423 A Porter TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2021-01-12   
346-423 0 Porter TX HSTNTXMOX7X  318J COMCAST IP PHONE LLC 560   2020-04-23   
346-423 1 Porter TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-02-18   
346-423 2 Porter TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-08-23   
346-423 3 Porter TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-08-23   
346-423 4 Porter TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-08-23   
346-423 5 Porter TX HSTNTXYANMD  506J TWILIO INTERNATIONAL INC 560   2020-10-08   
346-423 6 Porter TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2021-01-13   
346-423 7 Porter TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-04-24   
346-423 8 Porter TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-04-24   
346-423 9 Porter TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-04-24   
346-424 A Satsuma TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-424 0 Satsuma TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2020-05-24   
346-424 1 Satsuma TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2020-05-24   
346-424 2 Satsuma TX HSTNTXYANMD  506J TWILIO INTERNATIONAL INC 560   2020-10-08   
346-424 3 Satsuma TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2020-11-19   
346-424 4 Satsuma TX HSTDTXBG8MD  5562 METROPCS, INC. 560   2020-11-19   
346-424 5 Satsuma TX HSTNTXJAXLX  177F PEERLESS NETWORK OF TEXAS, LLC - TX 560   2020-11-01   
346-424 6 Satsuma TX HSTNTX01MMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 560   2020-07-13   
346-424 7 Satsuma TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-05-23   
346-424 8 Satsuma TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-05-23   
346-424 9 Satsuma TX HSTNTX01G04  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-05-23   
346-425 A Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560      
346-425 0 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-05-23   
346-425 1 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-05-23   
346-425 2 Langham Creek TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-05-23   
346-425 3 Langham Creek TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2020-05-24   
346-425 4 Langham Creek TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2020-05-24   
346-425 5 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-07-04   
346-425 6 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-07-04   
346-425 7 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-07-04   
346-425 8 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-07-04   
346-425 9 Langham Creek TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560   2020-07-04   
346-426 A Houston TX HSTNTXJAXCY  321J HD CARRIER LLC 560      
346-426 0 Houston TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2020-04-09   
346-426 1 Houston TX HSTQTX02DS4  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 560   2020-04-09   
346-426 2 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-04-27   
346-426 3 Houston TX HSTWTXUFPS1  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 560   2020-01-04   
346-426 4 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-03-19   
346-426 5 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-03-19   
346-426 6 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-03-19   
346-426 7 Houston TX HSTWTXUFAMD  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 560   2020-04-09   
346-426 8 Houston TX HSTNTXYADS5  903C ONVOY, LLC - TX 560   2020-04-27   
346-426 9 Houston TX HSTNTXJAXCY  321J HD CARRIER LLC 560   2019-12-22   
346-427 A Apollo TX HSTNTX01GT5  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 560      
346-427 1 Apollo TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2020-06-07   
346-427 2 Apollo TX HSTQTX02EMD  197D VONAGE AMERICA LLC 560   2020-06-07   
346-427 3 Apollo TX HSTNTXYANMD  506J TWILIO INTERNATIONAL INC 560   2020-10-08   

<< 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 >>

Last updated: Tue, 15 Nov 2022 00:10:00 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.