Autonomous system
AS42989 AS-CIDEN
Unclassified RIPE NSP
Summary
ciden GmbH
business germany small
AS-CIDEN is operated by ciden GmbH.
What it's used for
- The address space carries corporate infrastructure, indicated by netnames
DE-CIDEN-COREandDE-CIDEN-20191113associated with the registrant ciden GmbH. - The AS announces 512 IPv4 addresses across 2 prefixes and 1 IPv6 prefix, with only 3 observed neighbours, indicating a small-scale business network rather than a transit or large access provider.
- Traffic from this AS consists of internal corporate endpoints and services for ciden GmbH, a German company based in Dortmund.
Notable
- Registrants align with the announcer, with both IPv4 prefixes registered to ciden GmbH or its abuse contact role.
- The address inventory is compact, consisting of two /24 blocks and a single /48 IPv6 prefix, typical of a small enterprise estate.
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 2026-10-16, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 2 prefixes · 512 addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 3 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS42989- Registry name
- AS-CIDEN
- Registrant
- CIDEN-MNT
- Abuse contact
- noc@as42989.net
- Registered
- 2017-11-15
- Last changed
- 2021-07-19
- Allocation
- allocated
Declared
PeeringDB profile
- Name
- ciden GmbH
- Network type
- NSP
- Scope
- Global
- Traffic ratio
- Mostly Outbound
- Peering policy
- Selective
- IRR as-set
AS-CIDEN- Facilities
- 1 facilities
- Website
- http://www.ciden.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 · 3 valid, 0 with no ROA
- ROAs
- 4 authorising AS42989
- ASPA
- no ASPA record
- IRR
- 100% registered · 3 of 3 announcements
- Route objects
- 8 naming AS42989
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 1,783 prefixes, as published 2026-10-17. 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