Binary

Our room number at Cannon Beach Conference Center is 101. My kids and I were joking about having the only room number here that was the same forwards as backwards, and upside down. What would other room numbers have to be to have these same properties? I also was thinking that our room is binary for 5. 110 down the hall is binary for 6. What if all the room numbers were in binary? I think the numbers would all feel too similar and get too long. It could be interesting though… A binary hotel.