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: 999

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
585-999 A Java NY BFLONYFRXHY  384C ONVOY, LLC- NY 140      
585-999 0 Java NY   384C ONVOY, LLC- NY 140   2012-10-14   
585-999 1 Java NY   155E PEERLESS NETWORK OF NEW YORK, LLC - NY 140   2016-01-08   
585-999 2 Java NY   384C ONVOY, LLC- NY 140   2016-03-28   
585-999 3 Java NY   384C ONVOY, LLC- NY 140   2016-03-28   
585-999 4 Java NY   629E FINGER LAKES TECHNOLOGIES GROUP, INC. - NY 140   2017-10-06   
585-999 5 Java NY   997E BANDWIDTH.COM CLEC, LLC - NY 140   2017-12-28   
585-999 6 Java NY   997E BANDWIDTH.COM CLEC, LLC - NY 140   2017-12-28   
585-999 7 Java NY   508J CENTURYLINK COMMUNICATIONS, LLC 140   2015-06-13   
585-999 8 Java NY   384C ONVOY, LLC- NY 140   2018-09-03   
585-999 9 Java NY   384C ONVOY, LLC- NY 140   2012-10-14   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.