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: 505

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
775-505 A Pahrump NV PHRMNV55DS0  218G SOUTHWEST TELEPHONE COMPANY - NV 721      
775-505 0 Pahrump NV   218G SOUTHWEST TELEPHONE COMPANY - NV 721   2015-12-04   
775-505 1 Pahrump NV   029F ONVOY, LLC - NV 721   2016-03-25   
775-505 2 Pahrump NV   029F ONVOY, LLC - NV 721   2016-03-25   
775-505 3 Pahrump NV   075F BANDWIDTH.COM CLEC, LLC - NV 721   2016-07-11   
775-505 4 Pahrump NV   6529 T-MOBILE USA, INC. 721   2016-09-02   
775-505 5 Pahrump NV   590H MERCURY VOICE AND DATA, LLC DBA SUDDENLINK COMMUNI 721   2016-05-05   
775-505 6 Pahrump NV   073H TELNYX LLC 721   2017-05-16   
775-505 7 Pahrump NV   6529 T-MOBILE USA, INC. 721   2016-07-19   
775-505 8 Pahrump NV   6529 T-MOBILE USA, INC. 721   2016-07-19   
775-505 9 Pahrump NV   6529 T-MOBILE USA, INC. 721   2016-07-19   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.