Updates complete for times in 2008.
ANTWERPEN (in Belgium) Centraal station - regular service by trains that do not normally require a reservation. Normal travel time: 2 hours and 5 minutes (longer on weekends and holidays).
Departures at 06:56, 07:56, and every hour until 19:56 and 20:56.
Note: the InterCity trains between Amsterdam and Antwerpen offer open seating (i.e., no one can obtain reservations).