Autonomous system
AS9175 CIRCIT CircIT GmbH & Co.KG
Unclassified RIPE
Summary
circ IT GmbH & Co. KG
enterprise legacy
CIRCIT is held by circ IT GmbH & Co. KG, an IT systems house (Systemhaus) based in Düsseldorf, Germany (circit.de).
What it's used for
The AS announces about five IPv4 prefixes (~68k addresses, dominated by 149.221.0.0/16), taking transit from AS3320 (Deutsche Telekom) and others. rDNS on the sampled 195.216.220.0/23 addresses returned only bare in-addr.arpa names, so the space carries no descriptive host naming. This is a business IT/managed-services provider serving corporate customers rather than a consumer ISP.
Notable
- Abuse contact
network@circit.de; registered in Düsseldorf. - First seen in BGP in 2000, but only a single observed neighbour despite the large
/16, consistent with a single-homed enterprise/managed-hosting network.
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.
Transit providers
1 upstream, 0 downstream and 1 adjacent networks observed; most-used upstreams first.
| AS | Network | Paths seen |
|---|---|---|
| AS3320 | Deutsche Telekom AG | 300 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-29, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 5 prefixes · 68.86K addresses IPv6 0 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DE | Germany | 5 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS9175- Registry name
- circIT
- Registrant
- AS9175-MNT
- Abuse contact
- network@circit.de
- Registered
- 2002-01-09
- Last changed
- 2021-07-02
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 0% valid · 0 valid, 5 with no ROA
- ROAs
- 0 authorising AS9175
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 5 naming AS9175
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 1,849 prefixes, as published 2026-10-29. 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