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: 607 [Rate centres in NPA 607] [Dial plan for NPA 607]

NXX: 402

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
607-402 A Cortland NY SYRCNYSUX5Y  495J STRATUS NETWORKS 136      
607-402 1 Cortland NY   495J STRATUS NETWORKS 136   2021-03-28   
607-402 6 Cortland NY   624H ONVOY SPECTRUM, LLC 136   2022-02-12   
607-402 7 Cortland NY   624H ONVOY SPECTRUM, LLC 136   2022-02-12   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.