Autonomous system
AS9042 SIX Zuerich, Switzerland
Unclassified RIPE
Summary
SIX Group
enterprise finance legacy
SIX is held by SIX Group Services AG, the Swiss financial-market infrastructure operator that runs the SIX Swiss Exchange and Switzerland's interbank clearing and payment systems.
What it's used for
- Corporate and financial-market infrastructure networking for the exchange, clearing, settlement and securities-data businesses of the SIX Group.
Notable
- No PTRs on the addresses sampled, and only 2 observed neighbours, consistent with a tightly controlled private financial network rather than a public ISP.
- Announces ~10k addresses across 10 IPv4 prefixes plus IPv6; a single-institution enterprise network, not a commercial host or carrier.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| SwissIX | Zurich, Switzerland | 91.206.52.134 |
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 9 prefixes · 10.50K addresses IPv6 3 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CH | Switzerland | 12 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS9042- Registry name
- SIX
- Registrant
- SIX Group Services AG
- Abuse contact
- dnsadmin@six-group.com
- Registered
- 1970-01-01
- Last changed
- 2017-11-15
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 13 valid, 0 with no ROA
- ROAs
- 10 authorising AS9042
- ASPA
- no ASPA record
- IRR
- 100% registered · 13 of 13 announcements
- Route objects
- 49 naming AS9042
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 1,773 prefixes, as published 2026-10-13. 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