---
service: i.root-servers.net
start-period: '2015-12-22T00:00:00Z'
end-period: '2015-12-23T00:00:03Z'
metric: unique-sources
  num-sources-ipv4: 3127452
  num-sources-ipv6: 188856
  num-sources-ipv6-aggregate: 112809