# 640 AM

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

* XELOVE-AM in Cd. Juárez, Chihuahua
* XENQ-AM in Tulancingo, Hidalgo
* XETAM-AM in Santa Elena, Tamaulipas

## 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