---
service: i.root-servers.net
start-period: '2013-07-20T00:00:00Z'
end-period: '2013-07-21T00:00:10Z'
metric: unique-sources
  num-sources-ipv4: 2595652
  num-sources-ipv6: 73294
  num-sources-ipv6-aggregate: 43091