---
service: i.root-servers.net
start-period: '2016-01-31T00:00:00Z'
end-period: '2016-01-31T23:59:59Z'
metric: unique-sources
  num-sources-ipv4: 2629958
  num-sources-ipv6: 182596
  num-sources-ipv6-aggregate: 114848