---
service: i.root-servers.net
start-period: '2013-09-17T00:00:00Z'
end-period: '2013-09-18T00:00:01Z'
metric: unique-sources
  num-sources-ipv4: 3026487
  num-sources-ipv6: 73877
  num-sources-ipv6-aggregate: 43108