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: LGVWTXBAXGY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
430-288 A Tyler TX 478J NUSO, LLC 554      
430-288 2 Tyler TX 478J NUSO, LLC 554   2022-02-03   
430-351 2 Tyler TX 478J NUSO, LLC 554   2024-11-10   
430-352 1 Tyler TX 478J NUSO, LLC 554   2024-06-06   
430-352 2 Tyler TX 478J NUSO, LLC 554   2024-06-06   
903-749 9 Tyler TX 478J NUSO, LLC 554   2024-11-10   
903-817 5 Tyler TX 478J NUSO, LLC 554   2024-02-12   
903-817 6 Tyler TX 478J NUSO, LLC 554   2024-02-12   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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