How can I use ASInuse?

ASInuse's fundamental objective is providing a means of seeing if and how a particular AS number (ASN) is announced on the Internet. The query response lists the last update from peers, where the ASN was seen in the AS_Path. One should note that the 'views' are from the perspective of our Route Collector in Amsterdam and its peers.

MAT Working Group

A forum in which the RIPE NCC and the community can collaborate in the areas of data, tools and analysis relating to the Internet and its infrastructure.