Out of curiosity I collected some data on military-assigned parts of cyberspace. Using open sources (bgp.he.net, DNS and IP-to-ASN mapping) and no cybercrime, I enumerated for
http://cyberwar.nl/d/20110808_military_cyberspace.csv.gz
Don't use it for evil - use it to learn, e.g. to train yourself in cyber intelligence (whatever that is).
Enrich it with GeoIP data, for example, and see whether you can find unexpected mappings between cyberspace and the 'real' world.
Obviously, in military context, (especially) open sources are used to disseminate disinformation and red herrings - so you know what to expect. Assume data to be inaccurate until you have sufficiently reliable clues to believe otherwise.
(*) Though I imagine that this data collection could, theoretically, count as the 'counterintelligence activities' meant in United States DoD Directive 5240.06, May 17, 2011, on Counterintelligence Awareness and Reporting (CIAR) (.pdf) which I blogged about here.
Sunday, August 7, 2011 Posted by mrkoot at 9:46 AM
Read more:
http://blog.cyberwar.nl/2011/08/osint-on-military-cyberspace.html