---
version: rssac002v4
service: d.root-servers.net
start-period: 2022-02-21T00:00:00Z
end-period: 2022-02-21T23:59:59Z
metric: unique-sources
num-sources-ipv4: 4429579
num-sources-ipv6: 2180296
num-sources-ipv6-aggregate: 1425243
