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.

NPA: 775 [Rate centres in NPA 775] [Dial plan for NPA 775]

NXX: 380

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
775-380 A Silver Peak NV   4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720   2025-04-03   
775-380 0 Silver Peak NV   075F BANDWIDTH.COM CLEC, LLC - NV 720   2020-02-20   
775-380 1 Silver Peak NV   029F ONVOY, LLC - NV 720   2021-03-05   
775-380 2 Silver Peak NV   029F ONVOY, LLC - NV 720   2021-03-05   
775-380 3 Silver Peak NV   029F ONVOY, LLC - NV 720   2018-07-27   
775-380 5 Silver Peak NV   029F ONVOY, LLC - NV 720   2020-08-22   
775-380 7 Silver Peak NV   4805 LEVEL 3 COMMUNICATIONS, LLC - NV 720   2017-08-25   
775-380 8 Silver Peak NV   029F ONVOY, LLC - NV 720   2020-08-22   
775-380 9 Silver Peak NV   624H ONVOY SPECTRUM, LLC 720   2023-11-20   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.