Late at night, the ramp tower will shut down, usually around 11PM. This message is in the ATIS simply to let the pilots know that the ramp tower is still open, and you will need to contact ramp at the appropriate time on the taxi-in or prior to pushback.
, ramp control is actually responsible for a large portion of the taxiways on the north side of the airport. My airline has charts depicting the control boundaries between ground and ramp. In EWR
, there is no verbal handoff from ground to ramp....the pilot is expected to do it on their own at the appropriate time. In IAH
ground control will usually tell you when they want you to contact ramp, same in CLE
, etc etc. At most airports it's usually pretty obvious when you need to contact ramp....not the case at EWR
, especially if you're using the continental terminals.