FT8 should be used in the following amateur radio frequencies:

Band		Frequency MHz	Notes
160m		1.840	
160m		1.842	JS8Call
80m		3.573	
60m		5.357	
40m		7.056	Region 1
40m		7.071	
40m		7.074	
40m		7.078	JS8Call
30m		10.130	JS8Call
30m		10.132	Region 1
30m		10.133	
30m		10.136	
20m		14.071	
20m		14.074	
20m		14.078	JS8Call
20m		14.090	Region 1
17m		18.100	
17m		18.104	JS8Call
15m		21.074	
15m		21.078	JS8Call
15m		21.091	
12m		24.915	
10m		28.074	
10m		28.078	JS8Call
6m		50.310	
6m		50.313	
6m		50.328	JS8Call
6m		50.323	Intercontinental DX
4m		70.100	
2m		144.174	
1.25m		222.065	
70cm		432.065	
Sources:

WSJT-X and JTDX application’s settings
JS8Call web site
UK Six Meter Group