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.

Brownsville, TX

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
956-804 A HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-804 0 HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-804 1 HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-804 2 HRLNTXDU2MD  939H COMMIO, LLC 568   2024-02-23   
956-804 3 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-03-09   
956-804 4 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2024-06-16   
956-804 5 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2024-06-16   
956-804 6 HRLNTXHGMMD  004F BANDWIDTH.COM CLEC, LLC - TX 568   2024-08-10   
956-804 7 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-02-24   
956-804 8 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-02-24   
956-804 9 HRLNTXHGX1X  903C ONVOY, LLC - TX 568   2024-02-24   
956-816 A   4290 STPCS JOINT VENTURE, LLC 568   2025-09-04   
956-816 0   4290 STPCS JOINT VENTURE, LLC 568   2025-09-05   
956-816 1   4290 STPCS JOINT VENTURE, LLC 568   2025-09-05   
956-816 2   4290 STPCS JOINT VENTURE, LLC 568   2025-09-05   
956-816 3   4290 STPCS JOINT VENTURE, LLC 568   2025-09-05   
956-816 4   4290 STPCS JOINT VENTURE, LLC 568   2025-09-05   
956-816 5   4290 STPCS JOINT VENTURE, LLC 568   2025-09-04   
956-816 6   4290 STPCS JOINT VENTURE, LLC 568   2025-09-04   
956-816 7   4290 STPCS JOINT VENTURE, LLC 568   2025-09-04   
956-816 8   4290 STPCS JOINT VENTURE, LLC 568   2025-09-04   
956-816 9   4290 STPCS JOINT VENTURE, LLC 568   2025-09-04   
956-822 A HRLNTXHGXNX  965H FRACTEL, LLC 568      
956-822 0 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2021-10-24   
956-822 1 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2021-10-24   
956-822 2 HRLNTXHGXNX  965H FRACTEL, LLC 568   2021-07-12   
956-822 3 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2021-10-24   
956-822 4 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2021-10-24   
956-822 5 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2021-10-24   
956-822 6 HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-11-13   
956-822 7 HRLNTXHGXKX  624H ONVOY SPECTRUM, LLC 568   2021-11-13   
956-822 8 HRLNTXKX8MD  5562 METROPCS, INC. 568   2021-10-29   
956-822 9 HRLNTXKX8MD  4290 STPCS JOINT VENTURE, LLC 568   2021-10-24   
956-824 A   4290 STPCS JOINT VENTURE, LLC 568   2025-12-20   
956-824 0   4290 STPCS JOINT VENTURE, LLC 568   2025-12-22   
956-824 1   4290 STPCS JOINT VENTURE, LLC 568   2025-12-22   
956-824 2   4290 STPCS JOINT VENTURE, LLC 568   2025-12-22   
956-824 3   4290 STPCS JOINT VENTURE, LLC 568   2025-12-22   
956-824 4   4290 STPCS JOINT VENTURE, LLC 568   2025-12-22   
956-824 5   4290 STPCS JOINT VENTURE, LLC 568   2025-12-20   
956-824 6   4290 STPCS JOINT VENTURE, LLC 568   2025-12-20   
956-824 7   4290 STPCS JOINT VENTURE, LLC 568   2025-12-20   
956-824 8   4290 STPCS JOINT VENTURE, LLC 568   2025-12-20   
956-824 9   4290 STPCS JOINT VENTURE, LLC 568   2025-12-20   
956-826 A   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2026-01-23   
956-826 0   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2026-01-23   
956-826 1   6506 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 568   2026-01-23   
956-826 2   4290 STPCS JOINT VENTURE, LLC 568   2026-01-26   
956-826 3   4290 STPCS JOINT VENTURE, LLC 568   2026-01-26   
956-826 4   4290 STPCS JOINT VENTURE, LLC 568   2026-01-26   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 >>

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

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.