Growth of non-transit ASes


Transit and non-transit ASes contribute about equal numbers of prefixes despite the fact that there are 5 times as many non-transit ASes as transit ASes.

Transit ASes announce over 1/2 prefixes (53%)

For 1999-2000-2001:  
Fraction of nontransit ASes:                     81%, 83%, 84%
Announcements from nontransit ASes
               (percentage of semiglobal):                 42%, 43%, 46%