AS9042 — SIX Zuerich, Switzerland
AS9042 announces 6 IPv4 prefixes covering 10,496 addresses and 3 IPv6 prefixes.
About this network
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.
Announced prefixes
- 146.109.6.0/23
- 146.109.70.0/23
- 153.46.96.0/20
- 153.46.240.0/20
- 193.5.76.0/22
- 193.247.180.0/24
- 2a01:4640:100::/40
- 2a01:4640:200::/40
- 2a01:4640:c800::/40
Upstream networks
Adjacent networks
Internet exchanges
- SwissIX — Zurich, Switzerland
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IPv4
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IPv6
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Search Results
IPv4 Prefixes
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IPv6 Prefixes
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Total Prefixes
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Unique /24s
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⚠ SUSPICIOUS PREFIX ANNOUNCEMENTS DETECTED