asn.dev

Autonomous system

AS203621 kuc-as Kramer & Crew GmbH & Co. KG

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly DE
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Kramer & Crew GmbH & Co. KG

Germany · AI-generated

business it-services germany

The AS handle KUC-AS is held by Kramer & Crew GmbH & Co. KG.

What it's used for

  • The space carries a single IPv4 prefix 185.101.248.0/22 with netname DE-KUC-20150527, registered to Kramer & Crew GmbH & Co. KG.
  • The inventory consists of 1024 IPv4 addresses across 1 prefix, with 2 observed routing neighbours, indicating a small-scale corporate or service provider network rather than a large transit or access network.
  • Traffic from this AS represents the IT infrastructure and services of Kramer & Crew, a German IT consulting and digitalization firm founded in 1992, providing 360-degree IT direction and transformation services to clients.

Notable

  • The RDAP registrant KUC-RIPE-ADM and the abuse mailbox align with the announcer, confirming consistent ownership of the address space.
  • The address inventory is compact, consisting of a single /22 block, which is typical for a specialized IT services company managing its own network operations without extensive public-facing residential or mobile access.

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 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS8422NetCologne Gesellschaft fur Telekommunikation mbH184
AS3320Deutsche Telekom AG56

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-12, 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 · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
DEGermany1

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS203621
Registry name
kuc-as
Registrant
KUC-MNT
Abuse contact
abuse@kramerundcrew.de
Registered
2015-12-01
Last changed
2026-04-29
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 4 with no ROA
ROAs
0 authorising AS203621
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
5 naming AS203621

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: 453 networks and 1,848 prefixes, as published 2026-11-13. 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