---
service: i.root-servers.net
start-period: '2013-06-17T00:00:00Z'
end-period: '2013-06-18T00:00:01Z'
metric: unique-sources
  num-sources-ipv4: 3173366
  num-sources-ipv6: 76063
  num-sources-ipv6-aggregate: 45458