---
service: i.root-servers.net
start-period: '2014-03-20T00:00:00Z'
end-period: '2014-03-21T00:00:02Z'
metric: unique-sources
  num-sources-ipv4: 4188420
  num-sources-ipv6: 93390
  num-sources-ipv6-aggregate: 57922