Autonomous system
AS15474 RHNET SURISRHnet
Unclassified RIPE
Summary
RHnet
research education infrastructure
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
/16prefixes and one IPv6/32announced from Iceland, a hundred and thirty thousand addresses, across three observed BGP neighbours.
Notable
- Both IPv4 blocks are
/16prefixes, 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. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Reykjavik Internet Exchange | Reykjavik, Iceland | 195.130.211.10 |
Transit providers
1 upstream, 1 downstream and 3 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS2603 | NORDUnet | 154 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 131K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| IS | Iceland | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15474- Registry name
- RHNET
- Registrant
- Rannsokna- og haskolanet Islands hf.
- Abuse contact
- abuse@rhnet.is
- Registered
- 2002-02-11
- Last changed
- 2026-10-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 67% valid · 2 valid, 1 with no ROA
- ROAs
- 2 authorising AS15474
- ASPA
- 1 declared providers
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 3 naming AS15474
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere