1. BGP Zombie: Tools and Data.
https://github.com/romain-fontugne/BGPzombiesSSL
2. Isolario Project.
https://www.isolario.it/
3. RIPE NCC, Atlas.
https://atlas.ripe.net
4. RIPE NCC, Current RIS Routing Beacons.
https://www.ripe.net/analyse/internet-measurements/routing-information-service-ris/current-ris-routing-beacons
5. RIPE NCC, RIPEstat: BGP Looking Glass.
https://stat.ripe.net/widget/looking-glass