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: 421

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
585-421 A Fairport NY FAPTNYXBRS0  0121 FRONTIER TELEPHONE OF ROCHESTER, INC. 974      
585-421 0 Fairport NY FAPTNYXBRS0  0121 FRONTIER TELEPHONE OF ROCHESTER, INC. 974      
585-421 1 Fairport NY FAPTNYXBRS0  0121 FRONTIER TELEPHONE OF ROCHESTER, INC. 974      
585-421 2 Fairport NY FAPTNYXBRS0  0121 FRONTIER TELEPHONE OF ROCHESTER, INC. 974      
585-421 3 Fairport NY FAPTNYXBRS0  0121 FRONTIER TELEPHONE OF ROCHESTER, INC. 974      
585-421 4 Fairport NY FAPTNYXBRS0  0121 FRONTIER TELEPHONE OF ROCHESTER, INC. 974      
585-421 5 Fairport NY FAPTNYXBRS0  0121 FRONTIER TELEPHONE OF ROCHESTER, INC. 974      
585-421 6 Fairport NY ROCHNYLNDS0  7140 TC SYSTEMS, INC. - NY 974   2000-07-12   
585-421 7 Fairport NY ROCHNYCT0MD  7133 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NY 974   2003-05-27   
585-421 8 Fairport NY ROCHNY113MD  4107 CHOICE ONE COMMUNICATIONS, INC. - NY 974   2000-04-24   
585-421 9 Fairport NY FAPTNYXBRS0  0121 FRONTIER TELEPHONE OF ROCHESTER, INC. 974      

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.