---
service: i.root-servers.net
start-period: '2013-12-17T00:00:00Z'
end-period: '2013-12-18T00:00:06Z'
metric: unique-sources
  num-sources-ipv4: 2975777
  num-sources-ipv6: 79933
  num-sources-ipv6-aggregate: 49445