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: 344

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
607-344 A Cortland NY   829J PAETEC ITEL, LLC 136   2025-04-02   
607-344 0 Cortland NY   829J PAETEC ITEL, LLC 136      
607-344 1 Cortland NY SYRCNYSUX8Y  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 136   2014-11-09   
607-344 2 Cortland NY   829J PAETEC ITEL, LLC 136      
607-344 3 Cortland NY   793K TWC IP ENABLED SERVICES, LLC 136   2015-12-07   
607-344 4 Cortland NY   829J PAETEC ITEL, LLC 136      
607-344 5 Cortland NY SYRCNY901MD  939H COMMIO, LLC 136   2022-08-27   
607-344 7 Cortland NY SYRCNYSUX7X  624H ONVOY SPECTRUM, LLC 136   2021-04-24   
607-344 8 Cortland NY SYRCNYSUXLX  515J IP HORIZON LLC 136   2024-09-07   
607-344 9 Cortland NY SYRCNYSUXJX  6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136   2020-04-02   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.