In this answer there is a link to an amateur radio website listing what looks like satellites of interest to that community. The list is long (over 400 lines) and has a designator character in the last column. The key is
Active (*)
Deep space (d)
Failure (f)
Inactive (i)
Non-amateur (n)
Re-entered (r)
Unknown (u)
Weather sat (w)
I saw Deep space (d)
and got curious! I searched and found four entries with the Deep space designator. They are listed below for convenience, but take a moment to view the original site because I may have missed something.
Are these really deep space amateur radio satellites?
note: you can scroll left and right in the gray boxes. The lines are about 121 characters long. --->>
Satellite Number Uplink Downlink Beacon Mode Callsign
----------------- ----- ----------- ----------- ------- ----------------- ------------
UNITEC-1 36578 . 5840.000 5840.000 1200bps AFSK,CW JQ1ZUN d
4M-LXS . 145.980 . WSJT-JT65B LX0OHB d
SHIN'EN2 (FO-82) 40320 145.940-145.960 435.280-435.260 437.385/437.505 Transponder,WSJT/CW JG6YIG d
ARTSAT2-DESPATCH(FO-81) 40321 . . 437.325 CW JQ1ZNN d
space-art
tag ready for it. $\endgroup$