---
service: i.root-servers.net
start-period: '2013-04-28T00:00:00Z'
end-period: '2013-04-29T00:00:01Z'
metric: unique-sources
  num-sources-ipv4: 2531591
  num-sources-ipv6: 69738
  num-sources-ipv6-aggregate: 41440