I think you can download the assigned IPs from at least RIPE.
Otherwise you could download a BGP-dump and then get the AS-number from every announced IP-span and then map AS->Country.
Spawning only a few babies as "we" do it is important to only spawn healthy babies. The first test is the "great swim" of the sperm. The second is the health of the mother in the next 9 month and the "last" one is surviving birth. This making only the fittest/suitable survive.
And that is why "routing" it something hard makes sense.