AS15474 — RHNET SURISRHnet

AS15474 announces 2 IPv4 prefixes covering 131,072 addresses and 1 IPv6 prefixes.

About this network

Two of the old large blocks, one of them registered to a hospital.

What it's used for

• A research and university network. Two IPv4 /16 prefixes and one IPv6 /32 announced from Iceland, a hundred and thirty thousand addresses, across three observed BGP neighbours.

Notable

• Both IPv4 blocks are /16 prefixes, each announced whole, with no fragmentation at all.
• The second block is not registered to the network operator. Its netname and registrant name a university hospital, a separate organisation whose traffic this network carries.
• The AS handle runs two names together with no separator and mixed capitalisation.
• Six addresses were queried for reverse DNS and none returned a name.
• Three observed neighbours for a hundred and thirty thousand addresses.

Interesting

• Blocks this size were handed out before address scarcity was taken seriously, and a research network holding two of them is a marker of how early it connected.
• Announcing each block whole, with no smaller pieces alongside, is the tidiest possible routing footprint: two entries for a hundred and thirty thousand addresses, against networks a fifth this size that announce dozens.
• Carrying a hospital's address space is what a national research network is for. The same infrastructure serves universities and public institutions, and the registry record is where that arrangement shows.

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

Announced prefixes

• 130.208.0.0/16
• 160.210.0.0/16
• 2a00:c88::/32

Upstream networks

• AS2603 NORDUnet

Downstream networks

• AS29348 Icelandic Ministry of Education and Children

Adjacent networks

• AS2603 NORDUnet
• AS29348 Icelandic Ministry of Education and Children

Internet exchanges

• Reykjavik Internet Exchange — Reykjavik, Iceland