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'''ICANN Managed Root Server''' ('''IMRS''') is the name for the Root Server instance operated by ICANN. IMRS DNS system operates at 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 the prefix ranges are announced from AS20144.<ref>[https://www.dns.icann.org/imrs/ IMRS, DNS ICANN]</ref>