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
In the United States
Stations in bold are clear-channel stations.| Call sign | City of license | Facility ID | Class | Daytime power | Nighttime power | Unlimited power | Transmitter coordinates |
| KBRD | Lacey, Washington | 26893 | D | 0.25 | |||
| KBRW | Barrow, Alaska | 60375 | A | 10 | 10 | ||
| KFEQ | St. Joseph, Missouri | 34419 | B | 5 | 5 | ||
| KKGR | East Helena, Montana | 49725 | D | 5 | |||
| KKYX | San Antonio, Texas | 48273 | B | 50 | 10 | ||
| KNBR | San Francisco, California | 35208 | A | 50 | |||
| KOMW | Omak, Washington | 49163 | D | 5 | |||
| KWKA | Clovis, New Mexico | 14748 | B | 0.5 | |||
| WAPA | San Juan, Puerto Rico | 8889 | B | 10 | 9.5 | ||
| WCBM | Baltimore, Maryland | 4759 | B | 50 | 20 | ||
| WCNN | North Atlanta, Georgia | 56389 | B | 50 | 10 | ||
| WCTT | Corbin, Kentucky | 14361 | B | 0.77 | 0.83 | ||
| WDBC | Escanaba, Michigan | 35115 | B | 6 | 1 | ||
| WGES | St. Petersburg, Florida | 74558 | D | 0.8 | 0.14 | ||
| WHBE | Newburg, Kentucky | 56520 | B | 1 | 0.45 | ||
| WINR | Binghamton, New York | 67191 | B | 5 | 0.5 | ||
| WISR | Butler, Pennsylvania | 7900 | D | 0.25 | 0.05 | ||
| WKAZ | Charleston, West Virginia | 71662 | B | 10 | 0.221 | ||
| WMFS | Memphis, Tennessee | 34374 | B | 8 | 5 | ||
| WNZK | Dearborn Heights, Michigan | 5348 | B | 2.5 | |||
| WOGO | Hallie, Wisconsin | 63427 | B | 2.5 | 0.5 | ||
| WPTF | Raleigh, North Carolina | 21630 | B | 50 | 50 | ||
| WRKO | Boston, Massachusetts | 1902 | B | 50 | 50 |