---
service: i.root-servers.net
start-period: '2013-08-21T00:00:00Z'
end-period: '2013-08-22T00:00:07Z'
metric: unique-sources
  num-sources-ipv4: 3109145
  num-sources-ipv6: 78808
  num-sources-ipv6-aggregate: 47147