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.
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NPA: 713 [Rate centres in NPA 713] [Dial plan for NPA 713]

Region: TX

OCN: 490J BOOST SUBSCRIBERCO L.L.C.

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
713-670 8 Houston TX HSTNTXJAXQY  560   2024-10-25   
713-807 9 Houston TX HSTNTXJAXQY  560   2024-12-23   
713-912 2 Richmond-Rosenberg TX   560   2025-04-01   
713-912 3 Richmond-Rosenberg TX   560   2025-08-09   

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

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