---
service: i.root-servers.net
start-period: '2013-09-18T00:00:00Z'
end-period: '2013-09-19T00:00:01Z'
metric: unique-sources
  num-sources-ipv4: 2994588
  num-sources-ipv6: 74249
  num-sources-ipv6-aggregate: 43794