---
version: rssac002v4
service: d.root-servers.net
start-period: 2025-05-21T00:00:00Z
end-period: 2025-05-21T23:59:59Z
metric: unique-sources
num-sources-ipv4: 6578931
num-sources-ipv6: 1377333
num-sources-ipv6-aggregate: 539553
