I am not a sat platform expert but based on the extents that several networks went to prop up their ABR fleet, I am going to say that there are no contemporary receivers capable of decoding the ABR stream. More than one network was buying abandoned RX's from other networks that moved to XDS, etc.
Not the answer to your question but there will be a bunch more ABR's surplussed now that the AMC18 migration is over. Several networks have abandoned the ABR platform rather than move it to AMC18. TN Radio Network abandoned theirs in place so you will probably see them appearing on Ebay.