40 kHz — 0.04 MHz

Name: FreqBuddy radio frequency database
License: https://freqbuddy.com/

LF. 2 stations listed.

Stations listed on 40 kHz
Station	Country	Location	Power (kW)	Schedule (UTC)	Language
JJY Otakadoya-yama	Japan	Otakadoya-yama, Fukushima	50.000	24/7 continuous	Digital
Time Signal	Japan	Otakadoyama Tamura C	50.000	0000-2400	A1B