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: 956 [Rate centres in NPA 956] [Dial plan for NPA 956]

<< 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 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
956-721 1 Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-721 2 Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-721 3 Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-721 4 Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-721 5 Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-721 6 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2024-11-10   
956-721 7 Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-721 8 Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-721 9 Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-722 A Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-723 A Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-724 A Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-725 A Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-726 A Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-727 A Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-728 A Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-729 A Laredo TX LARDTXLADS0  9533 SOUTHWESTERN BELL 566      
956-730 A Harlingen TX HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-730 0 Harlingen TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2014-02-24   
956-730 1 Harlingen TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2015-01-08   
956-730 2 Harlingen TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2015-01-08   
956-730 3 Harlingen TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2014-02-24   
956-730 4 Harlingen TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2015-01-08   
956-730 5 Harlingen TX HRLNTXHGDS0  9533 SOUTHWESTERN BELL 568      
956-730 6 Harlingen TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2015-01-08   
956-730 7 Harlingen TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2014-01-13   
956-730 8 Harlingen TX HRLNTXHGX7X  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 568   2015-01-08   
956-731 A McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      
956-731 0 McAllen TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2016-08-18   
956-731 1 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2016-10-31   
956-731 2 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2016-10-31   
956-731 3 McAllen TX HRLNTXATTMD  7138 TELEPORT COMMUNICATIONS AMERICA, LLC - TX 568   2017-10-02   
956-731 4 McAllen TX HRLNTXHGXYX  793K TWC IP ENABLED SERVICES, LLC 568   2017-12-19   
956-731 5 McAllen TX HRLNTXHGXYX  793K TWC IP ENABLED SERVICES, LLC 568   2018-02-26   
956-731 6 McAllen TX HRLNTXHGXYX  793K TWC IP ENABLED SERVICES, LLC 568   2018-02-26   
956-731 7 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2017-01-12   
956-731 8 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2017-01-12   
956-731 9 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2016-06-13   
956-732 A McAllen TX PHRRTXPHDS1  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 568      
956-732 0 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2017-04-16   
956-732 1 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2017-04-16   
956-732 2 McAllen TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2017-04-12   
956-732 3 McAllen TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2017-04-12   
956-732 4 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2017-04-16   
956-732 5 McAllen TX PHRRTXPHDS1  319D FOREMOST TELECOMMUNICATIONS CORPORATION - TX 568   2016-12-29   
956-732 6 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2017-04-16   
956-732 7 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2017-04-16   
956-732 8 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2017-04-16   
956-732 9 McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2017-04-16   
956-733 A Weslaco TX HRLNTXHGXNX  965H FRACTEL, LLC 568      
956-733 0 Weslaco TX HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-09-07   
956-733 1 Weslaco TX HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-09-07   
956-733 2 Weslaco TX HRLNTXHGXOX  6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2020-09-07   
956-733 3 Weslaco TX HRLNTXHGXNX  965H FRACTEL, LLC 568   2020-09-06   
956-733 4 Weslaco TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2020-09-14   
956-733 5 Weslaco TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2020-09-14   
956-733 6 Weslaco TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2020-09-14   
956-733 7 Weslaco TX HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2021-05-27   
956-733 9 Weslaco TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2021-11-25   
956-734 A Harlingen TX HRLNTXAT1MD  7421 AT&T - LOCAL 568      
956-734 2 Harlingen TX MCALTX930MD  6114 LEVEL 3 COMMUNICATIONS, LLC - TX 568   2016-01-22   
956-734 3 Harlingen TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2014-07-22   
956-734 4 Harlingen TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2014-07-22   
956-734 5 Harlingen TX HRLNTXATYMD  516C AT&T CORP. 568   2011-07-01   
956-734 6 Harlingen TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2014-07-22   
956-734 7 Harlingen TX HRLNTXKX8MD  5562 METROPCS, INC. 568   2014-07-22   
956-734 9 Harlingen TX HRLNTXAT1MD  7421 AT&T - LOCAL 568      
956-735 A Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 0 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 1 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 2 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 3 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 4 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 5 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 6 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 7 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 8 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-735 9 Rio Grande City TX HRLNTXKX8MD  5562 METROPCS, INC. 568      
956-736 A Laredo TX SNANTXCA94Z  490J DISH WIRELESS, LLC 566      
956-736 0 Laredo TX SNANTXCA94Z  490J DISH WIRELESS, LLC 566   2023-09-01   
956-736 1 Laredo TX SNANTXDIRMD  903C ONVOY, LLC - TX 566   2023-09-02   
956-736 2 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2023-09-02   
956-736 3 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2023-09-02   
956-736 4 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2023-09-02   
956-736 5 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2023-09-02   
956-736 6 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2023-09-02   
956-736 7 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2023-10-15   
956-736 8 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2023-10-15   
956-736 9 Laredo TX SNANTX78GT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 566   2023-10-15   
956-737 A Zapata TX HRLNTXHGXUX  516J TON80 COMMUNICATIONS, LLC 568      
956-737 0 Zapata TX MCALTXHBDS0  4866 SMARTCOM TELEPHONE, LLC 568   2022-07-30   
956-737 1 Zapata TX HRLNTXDU2MD  939H COMMIO, LLC 568   2022-12-12   
956-737 7 Zapata TX HRLNTXHGXUX  516J TON80 COMMUNICATIONS, LLC 568   2022-06-05   
956-737 8 Zapata TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-04-05   
956-738 A Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568      
956-738 0 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-06-07   
956-738 2 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2023-10-23   
956-738 3 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-03-03   
956-738 4 Rio Grande City TX HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-03-03   
956-739 A McAllen TX HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568      

<< 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 >>

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.