---
service: i.root-servers.net
start-period: '2013-07-17T00:00:00Z'
end-period: '2013-07-18T00:00:20Z'
metric: unique-sources
  num-sources-ipv4: 3101567
  num-sources-ipv6: 78334
  num-sources-ipv6-aggregate: 46945