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: 598

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
775-598 A Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 0 Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 1 Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 2 Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 3 Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 4 Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 5 Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 6 Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 7 Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 8 Carson City NV   073H TELNYX LLC 720   2026-11-26   
775-598 9 Carson City NV   073H TELNYX LLC 720   2026-11-26   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.