Watering holes

Band	FT8	FT4	JT65	JT9	WSPR	PSK31	RTTY	Olivia	MT63	JS8Call
160 m	1.840		1.838	1.839	1.8366	1.838	1.838	1.838	1.807	1.842
80 m	3.573	3.575	3.570	3.572	3.5686	3.580	3.590	3.583	3.585	3.578
40 m	7.074	7.0475	7.076	7.078	7.0386	7.070	7.043	7.072	7.035	7.078
30 m	10.136	10.140	10.138	10.140	10.1387	10.142	10.143	10.141	10.137	10.130
20 m	14.074	14.080	14.076	14.078	14.0956	14.070	14.080	14.077	14.109	14.078
17 m	18.100	18.104	18.102	18.104	18.1046	18.097	18.105	18.103	18.100	18.104
15 m	21.074	21.140	21.076	21.078	21.0946	21.080	21.080	21.086	21.070	21.078
12 m	24.915	24.919	24.917	24.919	24.9246	24.920	24.925	24.921	24.920	24.922
10 m	28.074	28.180	28.076	28.078	28.1246	28.120	28.080	28.076	28.130	28.078
6 m	50.313				50.293
2 m	144.174				144.489

Notes

These are voluntary IARU band plans and widely used conventions. They are not regulations. They differ by region, so check them against your national rules.
The weak-signal mode frequencies are harmonized worldwide.
On 20 m, FT4 now uses 14.080, the traditional RTTY watering hole. Most RTTY activity is now about 3 kHz higher.
Keyboard-mode QSOs gather within a few kHz above the PSK31 watering hole. RTTY and the other data modes spread out to about 10 kHz above theirs.

Sources

IARU Region 1 HF band plan (2020), ARRL Considerate Operator's Frequency Guide, IARU Region 3 band plan (2019). Please send corrections through the fldigi-mcp issues page.