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: HSTNTXJAXQY

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
936-509 7 Waller TX 490J BOOST SUBSCRIBERCO L.L.C. 560   2022-03-01   
936-677 0 Plantersville TX 490J BOOST SUBSCRIBERCO L.L.C. 560   2024-07-12   
936-866 3 Dayton TX 490J BOOST SUBSCRIBERCO L.L.C. 560   2023-01-15   
979-379 7 Clute-Lake Jackson TX 490J BOOST SUBSCRIBERCO L.L.C. 560   2022-03-01   
979-452 8 Beasley TX 490J BOOST SUBSCRIBERCO L.L.C. 560   2022-12-19   
979-588 5 Hempstead TX 490J BOOST SUBSCRIBERCO L.L.C. 560   2022-09-04   
979-608 2 Bellville TX 490J BOOST SUBSCRIBERCO L.L.C. 560   2022-09-04   
979-837 2 Angleton TX 490J BOOST SUBSCRIBERCO L.L.C. 560   2022-12-12   

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Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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