21337.5 kHz — 21.337 MHz

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

HF / shortwave, 14 m band. 1 station listed.

Stations listed on 21337.5 kHz
Station	Country	Location	Power (kW)	Schedule (UTC)	Language
Amateur 15m Band	International	Worldwide	—	24h	Various