Autonomous system
AS15363 ASINFOSCORE
Unclassified RIPE
Summary
arvato infoscore
finance business enterprise
The reverse names put the parent group's brand inside the reverse tree itself.
What it's used for
- A credit information company's network. Two IPv4 prefixes announced from Germany, no IPv6, two thousand addresses, through one observed BGP neighbour.
Notable
- Every answering address returns a name of the form
255.bertelsmann.27.101.193.in-addr.arpa: the last octet, then the parent group's brand, then the remaining octets reversed, then the reverse tree's own suffix. - That is what a delegated reverse zone looks like when the zone name is quoted back as the answer, and the label chosen for the delegation names the group rather than this subsidiary.
- The two netnames are the same word with and without a trailing digit, one per block.
- Both registrant fields list a network administrator role and an abuse role, each ending in the same three letter site code.
- Six addresses were queried for reverse DNS and four returned a name.
Interesting
- A reverse name that ends in the reverse tree's suffix is not a hostname anybody can use. It resolves nothing forward, so any check that compares the two directions fails here.
- The interesting disclosure is corporate rather than technical: the addresses say which group owns the subsidiary, which no other field in the record does.
- Credit scoring firms hold files on people who never chose to be their customers. Two thousand addresses and one upstream is a small visible surface for that.
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 |
|---|---|---|
| AS12480 | ILK Internet GmbH Rechnerkommunikation im Internet | 130 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-20, 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 · 2.30K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS15363- Registry name
- ASINFOSCORE
- Registrant
- ILK-RIPE-MNT
- Abuse contact
- abuse@ilk.net
- Registered
- 1970-01-01
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 2 valid, 0 with no ROA
- ROAs
- 2 authorising AS15363
- ASPA
- no ASPA record
- IRR
- 100% registered · 2 of 2 announcements
- Route objects
- 2 naming AS15363
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: 442 networks and 1,779 prefixes, as published 2026-10-21. 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