If you want to solve these puzzles organically (or if the code is randomized in a different mode), here is the methodology for "Exclusive" tier locks.
Most guides tell you the answer is "three pairs." But the exclusive trick is that the numbers are actually mapped to an on-screen dial. resident x keypad code exclusive
: Management can see that a guest of Resident X entered, but they do not have access to the resident’s private, permanent PIN. If you want to solve these puzzles organically