AS215561 — SEIKE-AS Stefan Eikenbusch

AS215561 announces 0 IPv4 prefixes covering 0 addresses and 1 IPv6 prefixes.

About this network

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.

Announced prefixes

• 2001:678:1f0::/48

Upstream networks

• AS34927 iFog GmbH
• AS44103 The Mastermind Holding B.V.
• AS212895 Johannes Ernst
• AS34872 Sarah Rossius trading as Servperso Systems
• AS56662 Marcin Gondek
• AS401753 BIXCE Inc
• AS199854 Jens Thies

Adjacent networks

• AS34927 iFog GmbH
• AS44103 The Mastermind Holding B.V.
• AS212895 Johannes Ernst
• AS34872 Sarah Rossius trading as Servperso Systems
• AS199854 Jens Thies
• AS56662 Marcin Gondek
• AS401753 BIXCE Inc

Routing security

• RPKI: 1 valid, 0 invalid and 0 not-found announcements; 1 ROAs.
• ASPA: 4 authorised providers.
• IRR: 100% of announcements registered; 1 route objects.
• Listed in as-sets: AS-4IXP, AS-4IXP-RS, AS-HURRICANEV6, AS-IFOG, AS-IFOG, AS-RETN-ACTUAL-V6, AS-VM-JE-CUS, AS-XENTAIN:AS-CUSTOMERS, AS215561:AS-SEIKE, AS3214:AS-FILTERED, AS3214:AS-FILTERED, AS3214:AS-FILTERED, AS34872:AS-DOWNSTREAM-DE, AS34872:AS-DOWNSTREAM-DE, AS44103:AS-BAKKER-IT-AUTO-DOWNSTREAMS, AS52025:AS-DOWNSTREAMS-AMSTERDAM, AS52025:AS-DOWNSTREAMS-ASHBURN, AS52025:AS-DOWNSTREAMS-AUCKLAND, AS52025:AS-DOWNSTREAMS-FRANKFURT, AS52025:AS-DOWNSTREAMS-FREMONT, AS52025:AS-DOWNSTREAMS-KANSASCITY, AS52025:AS-DOWNSTREAMS-NEWARK, AS52025:AS-DOWNSTREAMS-SINGAPORE, AS52025:AS-DOWNSTREAMS-STOCKHOLM, AS52025:AS-DOWNSTREAMS-SYDNEY.

Internet exchanges

• Local Internet Exchange Düsseldorf — Düsseldorf, Germany