660 AM
The following radio stations broadcast on AM frequency 660 kHz: 660 AM is a United States clear-channel frequency. WFAN and KFAR share Class A status of 660 kHz.
In Argentina
- LT41 in Gualeguaychu, Entre Rios
In Canada
- CFFR in Calgary, Alberta - 50 kW 24-hour, transmitter located at
In Chile
- CB-66 in Santiago - this station was heard across most of Latin America.
In Colombia
- HJQS in Cúcuta
- HJR29 in San Andrés
- HJEZ in Santiago de Cali
In Mexico
- XECPR-AM in Felipe Carrillo Puerto, Quintana Roo
- XEDTL-AM in San Lorenzo Tezonco, Mexico City
- XEEY-AM in El Sauz II, Aguascalientes
- XEFZ-AM in San Nicolás de los Garza, Nuevo León
- XESJC-AM in San José del Cabo, Baja California Sur
- XEYG-AM in Matias Romero, Oaxaca
In the United States
| Call sign | City of license | Day kW | Night kW | Transmitter coordinates |
| KAPS | Mount Vernon, Washington | 10 | 1 | |
| KCRO | Omaha, Nebraska | 1 | 0.054 | |
| KEYZ | Williston, North Dakota | 5 | 5 | |
| KFAR | Fairbanks, Alaska | 10 | 10 | |
| KGSV | Oildale, California | 8 | 6 | |
| KSKY | Balch Springs, Texas | 20 | 0.7 | |
| KTNN | Window Rock, Arizona | 50 | 50 | |
| KXOR | Junction City, Oregon | 10 | 0.075 | |
| WAMO | Wilkinsburg, Pennsylvania | 1.4 | 0 | |
| WBHR | Sauk Rapids, Minnesota | 10 | 0.5 | |
| WDYZ | Altamonte Springs, Florida | 3.8 | 1 | |
| WESC | Greenville, South Carolina | 50 | 10 | |
| WFAN | New York, New York | 50 | 50 | |
| WLOY | Rural Retreat, Virginia | 0.55 | 0 | |
| WMIC | Sandusky, Michigan | 1 | 0 | |
| WXIC | Waverly, Ohio | 1 | 1 | |
| WXQW | Fairhope, Alabama | 10 | 0.85 |