Pompey have sold their full allocation of tickets for the New Year's Day trip to Bristol Rovers.
The final few terrace places were snapped up by supporters on Friday morning.
It means that the Blues will be backed by more than 1,100 fans at the Memorial Stadium for their first fixture of 2018.
Supporters who have purchased concession tickets are advised to bring proof of age identification with them to the game.
Official coach travel can be booked online here or by calling Lucketts Travel on 01329 237000.