I'm trying to pull futures and options on those futures for the federal funds rate, UK 3-month LIBOR (short sterling), and EU 3-month LIBOR (Euribor) using the RIC chains 0#1FF+ (for fed funds), 0#FSS+ (for UK), and 0#FEI+ (for EU). However, these chains do not return any data from prior to 2018, but I'm pretty confident there should be more data. Have the RICs these chains map to changed since then?
Separately, I know LIBOR is supposed to be phased out over the next couple years (I believe UK LIBOR will be gone next year), so I would be interested in 3-month SOFR (for US), SONIA (for UK), and ESTR (for EU) futures and options instead (EONIA would also work for EU). Are such series available via the API? I was not able to any of these other than (I believe) 0#SRA for US SOFR.
I would appreciate any guidance here. Thank you.