Autonomous system
AS13135 CREW-AS Hamburg, Germany
Unclassified RIPE NSP
Summary
Wieske's Crew
hosting isp business
Eight sampled addresses, eight naming conventions, including an office number and a street.
What it's used for
- A German hosting and network company. 6,144 addresses across seven IPv4 prefixes, 20 IPv6 prefixes, and five observed BGP neighbours.
Notable
- Eight of 18 sampled addresses returned names, no two alike:
LAN-212-12-50-0.irz42.net,BC-212.12.51.255.Office-Nr53.Humboldt.strasse.com,Host-254.temiz4u.net,HAM-Server-213-238-58.wizzad.de,213.238.59.bc.akra.de,dhcp127.m-bit.net,SWDrucker.crew-gmbh.deandBC-192.76.134.127.crew-gmbh.de. - Netnames include
KTSLANandKTS-LAN, the same name written two ways. - The IPv6 announcements include a cascade of doubling prefixes from
/47up to/41.
Interesting
- One of those names encodes a room number and a street as DNS labels, so the reverse lookup returns a physical location. The hostname is doing the job of an asset register, publicly.
- Another names a printer. Anything with a reverse name here is reachable from the internet, and office hardware is the last thing that should be.
BC-marks broadcast addresses, the ones that cannot belong to a host, named anyway by a generator that covered the whole range.- Seven blocks and eight conventions means every customer configured their own zone and the provider never imposed a house style.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
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
IPv4 7 prefixes · 6.14K addresses IPv6 19 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 26 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS13135- Registry name
- CREW-AS
- Registrant
- CREW-MNT
- Abuse contact
- abuse@irz42.net
- Registered
- 2002-08-07
- Last changed
- 2023-06-20
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- Wieske's Crew GmbH
- Also known as
- IRZ42
- Network type
- NSP
- Scope
- Europe
- Traffic ratio
- Mostly Outbound
- Peering policy
- Open
- IRR as-set
AS-CREW- Facilities
- 3 facilities
- Website
- https://www.crew-gmbh.de/
PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.
Routing security
RPKI and IRR
- RPKI
- 100% valid · 9 valid, 0 with no ROA
- ROAs
- 9 authorising AS13135
- ASPA
- no ASPA record
- IRR
- 100% registered · 9 of 9 announcements
- Route objects
- 13 naming AS13135
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: 442 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