How long were you in the company? Less/more than approx 1½ years? Plenty of 103xxx staffnumbers still around so if you were senior to them or especially if you were a lot more senior than them, then don't expect a call anytime soon. At the moment there's former 330/380 guys back in the country about to start a full 777 typerating course.
Yes, there is a black list even if you never were told of any disciplinary actions against you. On the other hand they are getting desperate so you might get a call anyway depending on why you were let go.
But again if you had been in the company for more than 2-3 years you have to ask yourself why you were singled out when so few guys from 777 were let go. It has been the least affected fleet (in terms of redundancy) during this entire pandemic.