Autonomous system
AS215561 SEIKE-AS
Unclassified RIPE
Summary
Stefan Eikenbusch
research ipv6 germany
SEIKE-AS is operated by Stefan Eikenbusch.
What it's used for
- The address space carries a single IPv6 prefix,
2001:678:1f0::/48, with no IPv4 inventory. - With 13 observed neighbours and only 1 announced prefix, the high neighbour-to-prefix ratio indicates a transit or peering-heavy role rather than a large access network.
- PeeringDB classifies the operator as Educational/Research, suggesting the traffic consists of academic or research endpoints.
Notable
- The registry holder is Stefan Eikenbusch, matching the AS handle
SEIKE-AS. - The address inventory is minimal, consisting solely of one IPv6 /48 block.
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 |
|---|---|---|
| Local Internet Exchange Düsseldorf | Düsseldorf, Germany | 185.1.155.171 |
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 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 1 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS215561- Registry name
- SEIKE-AS
- Registrant
- Stefan Eikenbusch
- Abuse contact
- abuse@internetmanufaktur.net
- Registered
- 2025-01-13
- Last changed
- 2026-08-06
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 1 valid, 0 with no ROA
- ROAs
- 1 authorising AS215561
- ASPA
- 4 declared providers
- IRR
- 100% registered · 1 of 1 announcements
- Route objects
- 1 naming AS215561
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