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: 680 [Rate centres in NPA 680] [Dial plan for NPA 680]

NXX: 336

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
680-336 A Watertown NY SYRCNY02AMD  965H FRACTEL, LLC 136      
680-336 0 Watertown NY   384C ONVOY, LLC- NY 136   2023-08-09   
680-336 1 Watertown NY   384C ONVOY, LLC- NY 136   2023-08-09   
680-336 2 Watertown NY   384C ONVOY, LLC- NY 136   2021-11-14   
680-336 3 Watertown NY   6959 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY 136   2025-10-15   
680-336 4 Watertown NY   515J IP HORIZON LLC 136   2021-01-02   
680-336 5 Watertown NY   997E BANDWIDTH.COM CLEC, LLC - NY 136   2022-11-24   
680-336 6 Watertown NY   384C ONVOY, LLC- NY 136   2021-11-14   
680-336 7 Watertown NY   624H ONVOY SPECTRUM, LLC 136   2021-04-26   
680-336 8 Watertown NY   965H FRACTEL, LLC 136   2020-09-04   
680-336 9 Watertown NY   384C ONVOY, LLC- NY 136   2021-11-14   

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

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.