640 AM
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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.
In Argentina
- LRA24 in Río Grande, Tierra del Fuego
- LU18 in General Roca, Río Negro
- LV15 in Villa Mercedes, San Luis
In Bolivia
- CP 157 in Milluni
In Brazil
- ZYH458 in Itabuna
- ZYH-757 in Goiânia
- ZYI-240 in Vitória·
- ZYI-418 in Alta Floresta
- ZYJ262 in Londrina
- ZYJ-489 in Resende
- ZYJ590 in Natal, Rio Grande do Norte
- ZYK-277 in Porto Alegre
- ZYK-547 in Araraquara
- ZYL-308 in Para de Minas
In 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) |
In Chile
- CA-064 in Curico
- CD-064 in Temuco
In Costa Rica
- TIQQ in San José
In Colombia
- HJBJ in Santa Marta
- HJR32 in Bucaramanga
In Cuba
- CMLA in Victoria de Las Tunas
In Ecuador
- HCXY1 in Quito
In France
In Guadeloupe
- FFQ in Point-à-Pitre
In Guatemala
- TGW in Guatemala City
In Honduras
- HRNN4 in Tegucigalpa
In Mexico
In Panama
- HOK 22 in Colón
In Paraguay
- ZP 19 in Coronel Oviedo
In Peru
- OAZ4K in Lima
In the United States
Stations in bold are clear-channel stations.
| Call sign | City of license | Facility ID | Class | Daytime power (kW) | Nighttime power (kW) | Unlimited power (kW) | Transmitter coordinates |
|---|---|---|---|---|---|---|---|
| KFI | Los Angeles, California | 34425 | A | 50 | 50 | 33°52′47″N 118°00′47″W/33.879722°N 118.013056°W/ 33.879722; -118.013056(KFI - 50 kW daytime, 50 kW nighttime) | |
| KTIB | Thibodaux, Louisiana | 36183 | B | 5 | 1 | 29°51′05″N 90°54′48″W/29.851389°N 90.913333°W/ 29.851389; -90.913333(KTIB - 5 kW daytime, 1 kW nighttime) | |
| KWPN | Moore, Oklahoma | 22190 | B | 5 | 1 | 35°17′21″N 97°30′08″W/35.289167°N 97.502222°W/ 35.289167; -97.502222(KWPN - 5 kW daytime, 1 kW nighttime) | |
| KYUK | Bethel, Alaska | 4963 | A | 10 | 60°46′57″N 161°53′00″W/60.7825°N 161.883333°W/ 60.7825; -161.883333(KYUK - 10 kW unlimited) | ||
| WBIN | Atlanta, Georgia | 29730 | B | 50 | 1 | 33°45′43″N 84°27′29″W/33.761944°N 84.458056°W/ 33.761944; -84.458056(WBIN - 50 kW daytime, 1 kW nighttime) | |
| WCRV | Collierville, Tennessee | 6486 | B | 50 | 0.48 | 34°59′35″N 89°53′58″W/34.993056°N 89.899444°W/ 34.993056; -89.899444(WCRV - 50 kW daytime, 0.48 kW nighttime) | |
| WFNC | Fayetteville, North Carolina | 8583 | B | 10 | 1 | 35°04′46″N 78°55′58″W/35.079444°N 78.932778°W/ 35.079444; -78.932778(WFNC - 10 kW daytime, 1 kW nighttime) | |
| WHLO | Akron, Ohio | 43858 | B | 5 | 0.5 | 41°04′47″N 81°38′45″W/41.079722°N 81.645833°W/ 41.079722; -81.645833(WHLO - 5 kW daytime, 0.5 kW nighttime) | |
| WMEN | Royal Palm Beach, Florida | 61080 | B | 7.5 | 0.46 | 26°45′18″N 80°22′00″W/26.755°N 80.366667°W/ 26.755; -80.366667(WMEN - 7.5 kW daytime, 0.46 kW nighttime) | |
| WMFN | Peotone, Illinois | 55089 | B | 4.4 | 1.6 | 41°18′04″N 87°50′07″W/41.301111°N 87.835278°W/ 41.301111; -87.835278(WMFN - 4.4 kW daytime, 1.6 kW nighttime) | |
| WNNZ | Westfield, Massachusetts | 9736 | B | 50 | 1 | 42°10′46″N 72°45′05″W/42.179444°N 72.751389°W/ 42.179444; -72.751389(WNNZ - 50 kW daytime, 1 kW nighttime) | |
| WOI | Ames, Iowa | 29119 | B | 5 | 1 | 41°59′34″N 93°41′27″W/41.992778°N 93.690833°W/ 41.992778; -93.690833(WOI - 5 kW daytime, 1 kW nighttime) | |
| WVLG | Wildwood, Florida | 70724 | B | 0.93 | 0.86 | 28°54′16″N 81°57′36″W/28.904444°N 81.96°W/ 28.904444; -81.96(WVLG - 0.93 kW daytime, 0.86 kW nighttime) | |
| WWJZ | Mount Holly, New Jersey | 43904 | B | 50 | 0.95 | 39°59′49″N 74°43′11″W/39.996944°N 74.719722°W/ 39.996944; -74.719722(WWJZ - 50 kW daytime, 0.95 kW nighttime) | |
| WXSM | Blountville, Tennessee | 29513 | B | 10 | 0.81 | 36°31′19″N 82°25′25″W/36.521944°N 82.423611°W/ 36.521944; -82.423611(WXSM - 10 kW daytime, 0.81 kW nighttime) |
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.
In Venezuela
- YVSI in Maracaibo
- YVQO in Puerto La Cruz