---
service: i.root-servers.net
start-period: '2016-02-21T00:00:00Z'
end-period: '2016-02-22T00:00:03Z'
metric: unique-sources
  num-sources-ipv4: 2631542
  num-sources-ipv6: 184380
  num-sources-ipv6-aggregate: 115646