Tall NBA guys like Georghe Muresan and Shawn Bradley used to advertise their height in the NBA with numbers 76 and 77.
In the mid 1990s, George Washington University had a tiny point guard named Shawnta (sp?) Rogers who advertised his height with the number 54. (Earl Boykins of Eastern Michigan may have done that with 55 in the NBA, I think I remember.) At GWU, Rogers played with a huge dude named, I think, Alexander Koul (sp?, again) who was, like, 7'3", but could not advertise his stature.
This is totally worthless information and only stands to prove that it was good, though limiting, to grow up as a kid with ESPN.