---
service: i.root-servers.net
start-period: '2015-03-20T00:00:00Z'
end-period: '2015-03-21T00:00:04Z'
metric: unique-sources
  num-sources-ipv4: 2939460
  num-sources-ipv6: 166440
  num-sources-ipv6-aggregate: 90030