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: 585 [Rate centres in NPA 585] [Dial plan for NPA 585]

NXX: 583

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
585-583 A Springwater NY ROCHNYXA7MD  384C ONVOY, LLC- NY 974      
585-583 1 Springwater NY ROCHNYXA7MD  384C ONVOY, LLC- NY 974   2021-04-05   
585-583 3 Springwater NY ROCHNYXA7MD  384C ONVOY, LLC- NY 974   2021-07-23   
585-583 8 Springwater NY BFLONYFRXBY  818H PEERING HUB, INC. - NY 974   2023-12-22   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.