680 AM

The following radio stations broadcast on AM frequency 680 kHz: 680 AM is a North American clear-channel frequency. KNBR and KBRW share Class A status on 680 kHz. WRKO, WPTF, CJOB and CFTR also broadcast on 680 kHz, with 50,000 watts at all times, but are class B.

458 Argentina

 * LT3 in Rosario, Santa Fe Province
 * LU12 in Rio Gallegos, Santa Cruz
 * LV6 in Mendoza

In Mexico

 * XECHG-AM in Chilpancingo, Guerrero

In the United States
Stations in bold are clear-channel stations.