yakov@watson.ibm.com writes: * Yakov. * P.S. As a matter of fact, I wonder whether we can get a list * of sites that have Class C networks sorted (in descreasing order) * by the number of contiguous Class C networks assigned to a site. Whilst this is not exactly what you are asking as part of the cidr repository on ftp.ripe.net I am now producing the following stats (see below). --Tony. P.S. We can also do something like AS-agg but based on the RIPE database rather than using actual routing information to see where in Europe at least we can get good CIDR aggregation based on an SPs allocation. Here's the current README for ftp.ripe.net:cidr/stats/ Also, check ftp.ripe.net:cidr/data for daily routing dumps if anyone is interested is doing other stats. README for cidr/stats directory ------------------------------- The statistics kept in the CIDR statistics directory are as follows: 1) Table-History This shows the increase (or hopefully a decrease ;-)) of the routing table in the global Internet. It is taken from a router in Amsterdam (Amsterdam-EBS1.Ebone.Net) once a day and shows the actual number of routes and paths seen. 2) AS-agg.* This shows a daily analysis of the networks (classful) routed in the Internet per AS and the amount of networks after aggregation at the AS level. The aggregation assumed is without any holes whatsoever. Of course not every AS can aggregate at the AS level so for some ASes the "NetsCIDR" figure may be difficult to reach. It should also be noted that an AS where figures for NetsNow and NetsCIDR are the same may well mean the AS has already done as much aggregation as is possible (AS224 is a good example of this). These files will be archived from time to time. 3) Specific.* This shows a daily analysis of the current aggregates seen routed in the Internet. It also checks if more specific routes (only more specific classful routes at the moment) are being announced and how may. An explanation of the table is given with each files. These files will be archived from time to time.