Out-of-print cards with UR numbers generally refer to the cards with 10 after the beginning of Sch, such as Sch, 00 1 002,003,004,005,006,007,008,009, which are all out-of-print cards with UR numbers.
However, please note that this is not absolute, and some new out-of-print cards may be issued later, so the most accurate way is to check the latest relevant information.