---
version: rssac002v4
service: d.root-servers.net
start-period: 2026-04-21T00:00:00Z
end-period: 2026-04-21T23:59:59Z
metric: unique-sources
num-sources-ipv4: 6698523
num-sources-ipv6: 1235369
num-sources-ipv6-aggregate: 756962
