http://w27irt6ldaydjoacyovepuzlethuoypazhhbot6tljuywy52emetn7qd.onion/mirrors/Internet%20Census%202012/Working%20with%20the%20Internet%20Census%202012.html
The engineer of this data set
(identity unknown) saved and released the collected data in early 2013.
The data is broken down into seven types of scan results: ICMP ping,
reverse DNS, service probes, host probes, syncscan queries, TCP/IP
fingerprints, and traceroute.