ICANN Managed Root Server

ICANN Managed Root Server (IMRS) DNS system operates at

  • Name label L.ROOT-SERVERS.NET.
  • IPv4 address 199.7.83.42 from the ranges 199.7.83.0/24 and 199.7.82.0/23
  • IPv6 address 2001:500:9f::42 from the ranges 2001:500:9f::/48 and 2001:500:9e::/47
  • All these prefix ranges are announced from AS20144.

The service uses the Name Server Daemon (NSD) from NLNetLabs, and Knot DNS from CZ.NIC Labs.

Some useful information:

OLD NOTICES