---
service: i.root-servers.net
start-period: '2015-02-21T00:00:00Z'
end-period: '2015-02-22T00:00:02Z'
metric: unique-sources
  num-sources-ipv4: 2488739
  num-sources-ipv6: 150812
  num-sources-ipv6-aggregate: 81504