---
service: i.root-servers.net
start-period: '2016-04-19T00:00:00Z'
end-period: '2016-04-20T00:00:01Z'
metric: unique-sources
  num-sources-ipv4: 3143890
  num-sources-ipv6: 199137
  num-sources-ipv6-aggregate: 125200