asn.dev

Autonomous system

AS211907 KATZE Benedikt Daniel Brenner

Unclassified RIPE

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

Summary

KATZE

Germany · AI-generated

isp residential germany ipv6

The AS handle KATZE is held by Benedikt Daniel Brenner.

What it's used for

  • The space carries a single IPv6 prefix, 2a0c:b641:a40::/44, with no announced IPv4 addresses.
  • The inventory consists of 1 IPv6 prefix and 0 IPv4 prefixes, observed against 4 routing neighbours.
  • PeeringDB classifies the operator as a Cable/DSL/ISP, indicating the traffic consists of residential subscriber access.

Notable

  • The registry holder is Benedikt Daniel Brenner, matching the AS name KATZE.
  • The address inventory is exclusively IPv6, comprising a single /44 block.

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 1 exchange in 1 country, largest first.

ExchangeLocationTheir address
Local Internet Exchange FrankfurtFrankfurt, Germany2001:7f8:f2:e1:a5:21:1907:1

Transit providers

4 upstream, 0 downstream and 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC28
AS210233Pixinko SARL5
AS34872Sarah Rossius trading as Servperso Systems2
AS208210Sarah Rossius trading as Servperso Systems2

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-03, 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 1 prefixes

CountryNamePrefixes
DEGermany1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS211907
Registry name
KATZE
Registrant
KATZE-MNT
Abuse contact
noc+abuse@benary.org
Registered
2023-06-21
Last changed
2023-06-29
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 1 valid, 0 with no ROA
ROAs
1 authorising AS211907
ASPA
no ASPA record
IRR
100% registered · 1 of 1 announcements
Route objects
1 naming AS211907

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: 448 networks and 1,851 prefixes, as published 2026-11-04. 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