asn.dev

Autonomous system

AS48646 STEFAN6

Unclassified RIPE

IPv4 addresses 0 0 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 8 recorded by PCH
Upstreams 5 8 downstream
Flagged prefixes 0 none

Summary

Stefan6 Network

Germany · AI-generated

transit ipv6 germany

STEFAN6 is operated by SDRmedia Verwaltungs GmbH.

What it's used for

  • The address space consists exclusively of two IPv6 prefixes: 2a0c:9a40:808a::/48 and 2a0f:5707:ac80::/44.
  • With zero IPv4 prefixes and 445 observed neighbours, the high neighbour-to-address ratio indicates a transit or peering role rather than an access network.
  • Traffic from this AS is primarily IPv6 transit and peering traffic, consistent with the operator's profile as a network service provider.

Notable

  • The registry holder is SDRmedia Verwaltungs GmbH, which aligns with the AS handle STEFAN6 and the operator identity Stefan6 Network.
  • The address inventory is minimal, containing only two IPv6 prefixes with no IPv4 space, suggesting a specialized or niche operational focus.

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

Recorded at 8 exchanges in 3 countries, largest first.

ExchangeLocationTheir address
4b42 Internet Exchange PointZurich, Switzerland185.1.125.182
DE-CIX FrankfurtFrankfurt, Germany80.81.195.243
Neutral Internet ExchangeAmsterdam, Netherlands193.239.118.143
KleyReX Internet ExchangeFrankfurt, Germany193.189.82.190
DE-CIX DusseldorfDüsseldorf, Germany185.1.170.254
Local Internet Exchange DüsseldorfDüsseldorf, Germany185.1.155.3
Local Internet Exchange FrankfurtFrankfurt, Germany185.1.166.111
CH Swiss Internet ExchangeZurich, Switzerland185.1.59.140

Transit providers

5 upstream, 8 downstream and 19 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC33
AS24482SG.GS1
AS34549meerfarbig GmbH & Co. KG1
AS56662Marcin Gondek1
AS401753BIXCE Inc1

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 0 prefixes · 0 addresses IPv6 2 prefixes

CountryNamePrefixes
DEGermany2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS48646
Registry name
STEFAN6
Registrant
EMZET-MNT
Abuse contact
abuse@sdr-media.de
Registered
2019-07-16
Last changed
2024-06-20
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
9 authorising AS48646
ASPA
no ASPA record
IRR
0% registered · 0 of 1 announcements
Route objects
6 naming AS48646

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: 440 networks and 1,773 prefixes, as published 2026-10-13. 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