Citrix have recently updated the KB article related to port numbers used by Citrix technologies; if you’re like me and can’t remember every single port number then this article is one to add to your favourites. Very handy when trying to battle with those friendly comms guys to change firewall rules.
http://support.citrix.com/servlet/KbServlet/download/2389-102-648658/CitrixPorts_by_Port_0333.pdf