Autonomous system
AS9092 OPENSYSTEMS-AS Zurich, Switzerland
Unclassified RIPE
Summary
Open Systems AG
enterprise security legacy
AS9092 (OPENSYSTEMS-AS) is held by Open Systems AG, a Zurich-based managed security and networking company (Managed SASE/SD-WAN and MDR), founded 1990 and acquired by Swiss Post in 2024.
What it's used for
The AS backs Open Systems' own service infrastructure rather than a mass-market access network. It announces around 5,120 IPv4 addresses (mainly 213.156.224.0/20 and several /24s) plus an IPv6 prefix, with roughly 49 observed BGP neighbours. Sampled reverse DNS returns firewall/gateway names such as fw-i33-out.open.ch and fw-a13-out.open.ch, consistent with a security operator's managed-edge estate.
Notable
The space has been announced since 2000. The relatively high peering count for a small address footprint reflects a security-services company that connects to many customer and partner networks.
Interesting
The open.ch firewall PTR naming (fw-...-out) is a direct fingerprint of Open Systems' core business: it operates managed security gateways as a service for enterprises across many countries.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| CH | Switzerland | 4 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS9092- Registry name
- OPENSYSTEMS-AS
- Registrant
- AS9092-MNT
- Abuse contact
- support@open.ch
- Registered
- 1970-01-01
- Last changed
- 2025-08-26
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere