asn.dev

Autonomous system

AS197473 STUFU-AS

Unclassified RIPE

IPv4 addresses 1.28K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 4 recorded by PCH
Upstreams 8 0 downstream
Flagged prefixes 0 none

Interconnection

Peering at a glance

Full topology · Graph

Internet exchanges

Recorded at 4 exchanges in 1 country, largest first.

ExchangeLocationTheir address
DE-CIX DusseldorfDüsseldorf, Germany185.1.170.63
DE-CIX MunichMunich, Germany185.1.208.71
DE-CIX HamburgHamburg, Germany185.1.210.80
Megaport Hamburg IXHamburg, Germany193.42.155.81

Transit providers

8 upstream, 0 downstream and 8 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8220COLT Technology Services Group Limited48
AS174Cogent Communications, LLC38
AS6939Hurricane Electric LLC18
AS34549meerfarbig GmbH & Co. KG6
AS6797GlobalConnect AB2
AS24482SG.GS2
AS31543myNet GmbH2
AS34800Securebit AG2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, 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 2 prefixes · 1.28K addresses IPv6 0 prefixes

CountryNamePrefixes
DEGermany2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS197473
Registry name
STUFU-AS
Registrant
de-studiofunk-1-mnt
Abuse contact
abuse@studiofunk.de
Registered
2010-12-15
Last changed
2022-06-07
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 2 with no ROA
ROAs
0 authorising AS197473
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
4 naming AS197473

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: 431 networks and 1,768 prefixes, as published 2026-10-12. 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