Apologies for not seeing that on the first pass.Yeah, Ar-Pharazon mentioned that above, in his list. It suggests that the Reliant in TWOK is a refit job that kept its old number.
So something like this:
https://www.trekbbs.com/threads/prologic9s-u-s-s-bombay-tos-miranda-class-from-st-vanguard.166732/