Originally Posted by
pandaperth
Mmm
I just looked at some my passed ticket numbers - plenty of them end in digits greater than 6

Same here. So if they were evenly distributed you'd expect 30% of numbers to be 7, 8 or 9.
My sample size is probably not big enough but about 15% of the ticket numbers in my saved emails ended in 7-9, airlines include BA, QF, SK and one airberlin ticket.