---
service: i.root-servers.net
start-period: '2015-05-31T00:00:00Z'
end-period: '2015-05-31T23:59:59Z'
metric: unique-sources
  num-sources-ipv4: 2546055
  num-sources-ipv6: 167254
  num-sources-ipv6-aggregate: 90545