asn.dev

Autonomous system

AS35675 DURCHDIELUFT-AS

Unclassified RIPE

IPv4 addresses 512 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Wissenschaftsladen Dortmund e.V.

Germany · AI-generated

business non-profit research small

DURCHDIELUFT-AS is operated by Wissenschaftsladen Dortmund e.V.

What it's used for

  • The address space carries the internal network of a non-profit science communication organization, as indicated by the registrant Wissenschaftsladen Dortmund e.V. and netname DURCHDIELUFT-NET.
  • The AS announces 512 IPv4 addresses in a single /23 prefix and one IPv6 /48 prefix, with only 3 observed neighbours, implying a small, self-contained site network rather than a transit or access provider.

Notable

  • The registrant Wissenschaftsladen Dortmund e.V. matches the AS holder, confirming direct ownership of the address space.
  • The address inventory consists of a single contiguous IPv4 block and one IPv6 prefix, typical of a small organizational estate with no indication of subdivision or leasing to third parties.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS50629LWLcom GmbH149
AS50873David Doepelheuer2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-18, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 512 addresses IPv6 1 prefixes

CountryNamePrefixes
DEGermany2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS35675
Registry name
DURCHDIELUFT-AS
Registrant
FAUL-MNT
Abuse contact
abuse@xs4free.net
Registered
2005-10-03
Last changed
2025-09-03
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
33% valid · 1 valid, 2 with no ROA
ROAs
1 authorising AS35675
ASPA
no ASPA record
IRR
100% registered · 3 of 3 announcements
Route objects
4 naming AS35675

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: 443 networks and 1,784 prefixes, as published 2026-10-19. 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

Cross-check