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: 741

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
585-741 A Geneseo NY ROCHNYXA7MD  384C ONVOY, LLC- NY 974   2024-05-05   
585-741 0 Geneseo NY ROCHNYXA7MD  384C ONVOY, LLC- NY 974   2024-05-05   
585-741 1 Geneseo NY ROCHNYXA7MD  384C ONVOY, LLC- NY 974   2024-07-06   
585-741 2 Geneseo NY ROCHNYXAXNX  087H EMPIRE LONG DISTANCE CORPORATION 974   2024-10-06   
585-741 3 Geneseo NY ROCHNYXAXLX  624H ONVOY SPECTRUM, LLC 974   2025-01-16   
585-741 4 Geneseo NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 974   2025-04-20   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.