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.

Switch: HSTNTXYAOMD

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
409-946 0 Port Bolivar TX 515J IP HORIZON LLC 560   2025-03-06   
832-268 1 Apollo TX 515J IP HORIZON LLC 560   2025-03-01   
832-268 2 Apollo TX 515J IP HORIZON LLC 560   2025-03-01   
936-353 8 Timpson TX 515J IP HORIZON LLC 560   2023-12-28   
936-353 9 Timpson TX 515J IP HORIZON LLC 560   2023-12-28   
936-354 0 Huntsville TX 515J IP HORIZON LLC 560   2023-12-28   
936-359 8 Chireno TX 515J IP HORIZON LLC 560   2023-12-28   
936-359 9 Chireno TX 515J IP HORIZON LLC 560   2023-12-28   
979-234 8 Eagle Lake TX 515J IP HORIZON LLC 560   2023-12-28   
979-274 7 Bellville TX 515J IP HORIZON LLC 560   2023-12-28   
979-276 2 Garwood TX 515J IP HORIZON LLC 560   2025-05-04   
979-276 3 Garwood TX 515J IP HORIZON LLC 560   2024-05-17   
979-276 4 Garwood TX 515J IP HORIZON LLC 560   2025-05-04   
979-334 3 Angleton TX 515J IP HORIZON LLC 560   2025-04-24   
979-346 9 Matagorda TX 515J IP HORIZON LLC 560   2024-05-17   
979-351 3 Sealy TX 515J IP HORIZON LLC 560   2025-05-04   
979-351 4 Sealy TX 515J IP HORIZON LLC 560   2025-05-04   
979-360 1 Brenham TX 515J IP HORIZON LLC 560   2023-12-28   
979-363 8 Columbus TX 515J IP HORIZON LLC 560   2025-05-04   
979-363 9 Columbus TX 515J IP HORIZON LLC 560   2025-05-04   
979-365 6 Clute-Lake Jackson TX 515J IP HORIZON LLC 560   2025-04-24   
979-365 7 Clute-Lake Jackson TX 515J IP HORIZON LLC 560   2025-04-24   
979-407 A Sealy TX 515J IP HORIZON LLC 560   2024-06-15   
979-407 1 Sealy TX 515J IP HORIZON LLC 560   2024-06-15   
979-413 0 Bellville TX 515J IP HORIZON LLC 560   2025-04-24   
979-413 9 Bellville TX 515J IP HORIZON LLC 560   2025-04-24   
979-416 A Bay City TX 515J IP HORIZON LLC 560   2025-05-22   
979-416 1 Bay City TX 515J IP HORIZON LLC 560   2025-05-22   
979-416 2 Bay City TX 515J IP HORIZON LLC 560   2025-05-22   
979-419 A Brenham TX 515J IP HORIZON LLC 560   2025-05-22   
979-419 1 Brenham TX 515J IP HORIZON LLC 560   2025-05-22   
979-419 2 Brenham TX 515J IP HORIZON LLC 560   2025-05-22   
979-453 3 Wharton TX 515J IP HORIZON LLC 560   2025-05-04   
979-453 4 Wharton TX 515J IP HORIZON LLC 560   2025-05-04   
979-493 8 Columbus TX 515J IP HORIZON LLC 560   2023-12-28   
979-607 2 El Campo TX 515J IP HORIZON LLC 560   2023-12-28   
979-608 3 Bellville TX 515J IP HORIZON LLC 560   2023-12-28   
979-617 A El Campo TX 515J IP HORIZON LLC 560   2025-06-01   
979-617 1 El Campo TX 515J IP HORIZON LLC 560   2025-06-01   
979-619 A Hempstead TX 515J IP HORIZON LLC 560   2025-06-01   
979-619 1 Hempstead TX 515J IP HORIZON LLC 560   2025-06-01   
979-619 2 Hempstead TX 515J IP HORIZON LLC 560   2025-06-01   
979-620 A Matagorda TX 515J IP HORIZON LLC 560   2025-06-01   
979-620 1 Matagorda TX 515J IP HORIZON LLC 560   2025-06-01   
979-620 2 Matagorda TX 515J IP HORIZON LLC 560   2025-06-01   
979-783 1 Eagle Lake TX 515J IP HORIZON LLC 560   2025-05-04   
979-783 2 Eagle Lake TX 515J IP HORIZON LLC 560   2025-05-04   
979-837 3 Angleton TX 515J IP HORIZON LLC 560   2025-04-24   
979-871 7 Freeport TX 515J IP HORIZON LLC 560   2025-05-04   
979-871 8 Freeport TX 515J IP HORIZON LLC 560   2025-05-04   

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Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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