640 AM
AM radio frequency
640 AM - The following radio stations broadcast on AM frequency 640 kHz: 640 AM is a North American clear-channel frequency. KFI in Los Angeles, California, KYUK in Bethel, Alaska, and CBN in St. John's, Newfoundland and Labrador, share Class A status of 640 AM.
01In Argentina
02In Brazil
03In Canada
Stations in bold are clear-channel stations.
| Call sign | City of license | Daytime power (kW) | Nighttime power (kW) | Transmitter coordinates |
|---|---|---|---|---|
| CBIA | Gjoa Haven, Nunavut | 0.04 | 0.04 | 68°37′36″N 95°52′21″W / 68.6267°N 95.8725°W / 68.6267; -95.8725 (CBIA - 0.04 kW daytime, 0.04 kW nighttime) |
| CBN | St. John's, Newfoundland and Labrador | 10 | 10 | 47°34′08″N 52°48′45″W / 47.568889°N 52.8125°W / 47.568889; -52.8125 (CBN - 10 kW daytime, 10 kW nighttime) |
| CFIQ | Richmond Hill, Ontario | 50 | 50 | 43°10′45″N 79°25′59″W / 43.179167°N 79.433056°W / 43.179167; -79.433056 (CFMJ - 50 kW daytime, 50 kW nighttime) |
04In Colombia
05In Mexico
06In the United States
Stations in bold are clear-channel stations.
Between 1951 and 1963, the frequency was also one of two used for the United States' CONELRAD emergency broadcasting system, the other frequency being 1240 AM.
07In Venezuela
Sources and credits
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