AS8991 — HCMR-NET

AS8991 announces 4 IPv4 prefixes covering 1,280 addresses and 0 IPv6 prefixes.

About this network

HCMR-NET is the network of the Hellenic Centre for Marine Research, Greece's national research organisation for oceanography and marine science, headquartered at Anavyssos in Attica.

What it's used for

• Networking for HCMR's research institutes and campuses. Reverse DNS on the announced prefixes resolves entirely into hcmr.gr, with site labels marking the main locations: .her.hcmr.gr for Heraklion, Crete and .ath.hcmr.gr for Athens.
• The named hosts are institutional infrastructure (nameservers, mail relays, LDAP, RADIUS, compute nodes and site routers), not customer or subscriber space.

Notable

• A state research organisation, so this is government/academic address space rather than commercial. It should not be geolocated as consumer or hosting space.
• Small and self-contained: roughly 1,300 IPv4 addresses across four prefixes, with a couple of upstreams and no downstream customers.
• Part of the space is drawn from Greek academic-network blocks (83.212.x and 195.251.x), which is where most Greek research institutions are numbered.

Interesting

• HCMR runs research vessels, a crewed submersible and ROVs; some of the hosts on this network front oceanographic data services, including national ocean-data holdings.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 83.212.249.0/24
• 83.212.250.0/24
• 192.135.166.0/24
• 195.251.36.0/23

Upstream networks

• AS5408 National Infrastructures for Research and Technology S.A.
• AS3329 Vodafone-panafon Hellenic Telecommunications Company SA

Adjacent networks

• AS5408 National Infrastructures for Research and Technology S.A.
• AS3329 Vodafone-panafon Hellenic Telecommunications Company SA