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640 AM - The following radio stations broadcast on AM frequency 640 kHz: [1] 640 AM is a North American clear-channel frequency. [2] 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.
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″N95°52′21″W / 68.6267°N 95.8725°W |
| CBN | St. John's, Newfoundland and Labrador | 10 | 10 | 47°34′08″N52°48′45″W / 47.568889°N 52.8125°W |
| CFIQ | Richmond Hill, Ontario | 50 | 50 | 43°10′45″N79°25′59″W / 43.179167°N 79.433056°W |
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.
The following radio stations broadcast on AM frequency 1020 kHz: 1020 AM is a clear-channel U.S. frequency. KDKA Pittsburgh and KVNT Eagle River, Alaska, share Class A status of 1020 AM.
The following radio stations broadcast on AM frequency 1550 kHz: 1550 AM is a clear-channel frequency reserved for Canada. Class A CBEF in Windsor, Ontario, broadcasts on 1550 kHz. Clear-channel status had also been shared with XHRUV in Jalapa, Veracruz, Mexico, but that station switched to FM only, with the AM station now silent. See also List of broadcast station classes.
The following radio stations broadcast on AM frequency 590 kHz: 590 AM is a Regional broadcast frequency.
The following radio stations broadcast on the AM frequency of 570 kHz : 570 AM is a regional broadcast frequency.
The following radio stations broadcast on AM frequency 560 kHz: The Federal Communications Commission categorizes 560 AM as a regional frequency; the maximum power for any station on this frequency is 5,000 watts.
The following radio stations broadcast on AM frequency 580 kHz: 580 AM is classified as a regional broadcast frequency by the Federal Communications Commission.
The following radio stations broadcast on AM frequency 610 kHz: The Federal Communications Commission classifies 610 AM as a regional broadcast frequency.
The following radio stations broadcast on AM frequency 540 kHz: 540 AM is a Canadian and Mexican clear-channel frequency. CBK, Watrous-Regina, Saskatchewan, and XEWA San Luis Potosí, Mexico, share Class A status on 540 kHz.
The following radio stations broadcast on AM frequency 620 kHz: 620 AM is a Regional broadcast frequency.
The following radio stations broadcast on AM frequency 630 kHz: 630 AM is a regional U.S. broadcast frequency. 630 kHz is a Philippine clear-channel frequency used by NTC. DZMM share Class A status at 630 kHz and being defunctional because of legislative franchise lapsed
The following radio stations broadcast on AM frequency 720 kHz: 720 AM is a United States clear-channel frequency. WGN Chicago and KOTZ Kotzebue, Alaska, share Class A status of 720 kHz.
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.
The following radio stations broadcast on AM frequency 550 kHz, which the Federal Communications Commission classifies as a regional frequency.
The following radio stations broadcast on AM frequency 940 kHz: 940 AM is a Mexican and Canadian clear-channel frequency. XEQ Mexico City is the dominant Class A clear channel station on 940 kHz. See also List of broadcast station classes. CFNV in Montreal, Quebec, is also a Class A station.
The following radio stations broadcast on AM frequency 950 kHz: The Federal Communications Commission categorizes 950 AM as a regional frequency.
The following radio stations broadcast on AM frequency 1010 kHz: 1010 AM is a Canadian clear-channel frequency. CFRB Toronto and CBR Calgary are both Class A, 50,000 watt stations.
The following radio stations broadcast on AM frequency 1080 kHz: 1080 AM is a United States clear-channel frequency. KRLD Dallas, WTIC Hartford and KOAN Anchorage share Class A status on 1080 AM.
The following radio stations broadcast on AM frequency 1530 kHz: 1530 AM is a United States clear-channel frequency. KFBK Sacramento and WCKY Cincinnati share Class A status on 1530 AM.
The following radio stations broadcast on AM frequency 1570 kHz: 1570 AM is a Mexican clear-channel frequency, with XERF Ciudad Acuña, Coahuila, as the dominant Class A station. See List of broadcast station classes.
The following radio stations broadcast on AM frequency 1580 kHz: 1580 AM is a Canadian clear-channel frequency. See list of broadcast station classes.