Longest Match / Organisations

Registered organisation

National Research Center "Kurchatov Institute"

Address space registered to National Research Center "Kurchatov Institute", and where it is announced from.

Registered holders come from the bulk whois that RIPE, APNIC and AFRINIC publish. ARIN and LACNIC do not publish theirs, so holders in North and South America are largely missing here.

What this tells you

• Holds 66,048 IPv4 addresses and 65,537 IPv6 /64 networks across 6 registered blocks.
• Announced by 5 networks, the largest being AS59624 National Research Center "Kurchatov Institute" at 66% of the IPv4 space.
• All of the space we can place resolves to Russia.

Networks announcing this space

Network	IPv4 share	IPv6 share
AS59624 National Research Center "Kurchatov Institute"	66%	100%
AS201052 Autonomous nonprofit organisation "Computer Incident Response Center"	12%	-
AS29493 Federal State Budget Institution Petersburg Institute of Nuclear Physics of B.P. Konstantinov	3%	-
AS2643 Federal State Budgetary Institution "Institute of High Energy Physics named after A.A.Logunov of National Research Center "Kurchatov Institute"	3%	-
AS208903 Federal State Budgetary Institution Budker Institute of Nuclear Physics of Siberian Branch Russian Academy of Sciences	0.4%	-
Not announced to the internet	15%	-

Countries this space resolves to

Country	IPv4 share	IPv6 share
Russia	100%	100%

Holding a block is a registry fact, not a physical one. The organisation named here is who the block is assigned to, which is often a customer of the network operator announcing it.