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   
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: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.