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: RENONV12X6X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
775-484 A Reno NV 478J NUSO, LLC 720      
775-484 2 Reno NV 478J NUSO, LLC 720   2021-11-28   
775-524 8 Reno NV 478J NUSO, LLC 720   2024-06-10   
775-524 9 Reno NV 478J NUSO, LLC 720   2024-06-10   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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