---
service: i.root-servers.net
start-period: '2013-11-19T00:00:00Z'
end-period: '2013-11-20T00:00:03Z'
metric: unique-sources
  num-sources-ipv4: 2987461
  num-sources-ipv6: 75752
  num-sources-ipv6-aggregate: 44604