Today is my 180 day mark. No other dates available for booking online. However, when I called at 7 AM EDT, I was on hold for only a few seconds and a friendly CM took care of all of my plus-ten-days ADR's very easily and quickly. Everything was linked to My Disney Experience moments later. fyi -When online booking opened this AM I tried to make my arrival day reservation at 5 PM. It was available (YES!!) so I hit the Book Now button, and got the dreaded "server is busy" error. Tried again as fast as the computer would allow, and the earliest time available was for 90 minutes later - but it's booked!