[Cumulonimbus57]

I've been sorting old Chairman's awards submissions at FIRST and have spent a lot of time in the team data base looking up teams. This data base lists almost every team that has ever signed up, and there are entrees for almost every number. Some of these teams are repeats, teams that dropped out and came back (Fairport High, NY came up under 3 different numbers). In the thousands, however, there are teams with numbers that signed up, like the team from Germany, who got a number and never competed at a single event. The number was not reassigned. I would guess that the highest team number is a good indication of how many teams have actually signed up at one time or another, but not necessarily how many competed at competition.