Autonomous system
AS211153 HAFNIUM-AS
Unclassified RIPE Educational/Research
Summary
Hafnium
education research ipv6
HAFNIUM-AS is operated by Hafnium, an educational and research entity based in Denmark.
What it's used for
- The address space consists exclusively of two IPv6 prefixes:
2a0e:8f02:2190::/44and2a0e:8f02:f034::/48. - With zero IPv4 addresses announced and a single observed neighbour, the network functions as a small-scale research or educational endpoint rather than a transit or access provider.
- Traffic from this AS is associated with academic or research activities, consistent with the operator's classification as an educational institution.
Notable
- The registry holder is listed as Emil Petersen, which aligns with the operator identity found in secondary sources.
- The address inventory is minimal, comprising only two IPv6 prefixes with no IPv4 allocation, indicating a specialized or limited-scope network deployment.
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
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS205235 | Labitat | 111 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 0 prefixes · 0 addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DK | Denmark | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS211153- Registry name
- HAFNIUM-AS
- Registrant
- HAFNIUM-MNT
- Abuse contact
- abuse@mail.hafnium.me
- Registered
- 2021-06-17
- Last changed
- 2025-05-19
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Hafnium
- Also known as
- Hafnium
- Network type
- Educational/Research
- Scope
- Europe
- Traffic ratio
- Balanced
- Peering policy
- Open
- IRR as-set
RIPE::AS211153:AS-ALL- Present at
- 1 exchanges
- Facilities
- 1 facilities
- Website
- https://hafnium.me/as211153/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 3 valid, 0 with no ROA
- ROAs
- 2 authorising AS211153
- ASPA
- 2 declared providers
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 8 naming AS211153
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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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