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: NCGDTXNCX0X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
346-364 7 Cleveland TX 425J CSC WIRELESS, LLC 560   2019-06-20   
346-825 3 Cleveland TX 425J CSC WIRELESS, LLC 560   2025-04-16   
346-825 4 Cleveland TX 425J CSC WIRELESS, LLC 560   2025-04-28   
832-345 2 Cleveland TX 425J CSC WIRELESS, LLC 560   2019-07-07   
936-339 1 Huntsville TX 425J CSC WIRELESS, LLC 560   2022-08-08   
936-339 3 Huntsville TX 425J CSC WIRELESS, LLC 560   2024-07-22   
936-400 6 Huntsville TX 425J CSC WIRELESS, LLC 560   2024-08-14   
936-500 0 Huntsville TX 425J CSC WIRELESS, LLC 560   2019-06-25   
936-500 2 Huntsville TX 425J CSC WIRELESS, LLC 560   2019-07-09   
936-500 3 Huntsville TX 425J CSC WIRELESS, LLC 560   2019-07-15   
936-932 1 Huntsville TX 425J CSC WIRELESS, LLC 560   2025-04-27   
936-932 2 Huntsville TX 425J CSC WIRELESS, LLC 560   2025-04-27   
979-290 A Brenham TX 425J CSC WIRELESS, LLC 560      
979-290 2 Brenham TX 425J CSC WIRELESS, LLC 560   2019-05-16   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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