asn.dev

Autonomous system

AS8640 ZFS-GROUP

Unclassified RIPE

IPv4 addresses 73.73K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly CH
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Zurich Insurance

Switzerland · AI-generated

enterprise legacy

Zurich Insurance Company AG (ZFS-GROUP) — the corporate network of the Swiss insurance group headquartered in Zurich. The handle preserves the company's former name, Zurich Financial Services.

What it's used for

  • Enterprise IT for a global insurance business: internal systems, corporate connectivity for offices and business units, and the group's public-facing services. Sampled rDNS in the announced space lands on Zurich's own infrastructure (for example ns5.zurich.com), not on customer or subscriber pools.
  • No dynamic, DSL, PPPoE or CGN naming appears anywhere in the inventory — this is a single organisation's address space, not an access network.

Notable

  • Around 73,000 IPv4 addresses, which is large for a non-telecom, but ordinary for a multinational financial-services group that numbered its internal estate with public addresses long before RFC 1918 habits took hold.
  • The inventory is contiguous and self-registered: a 171.27.0.0/16 legacy block plus a coherent run of 195.28.224.0/19 RIPE space. That coherence is what separates a genuine enterprise from the scattered, third-party-registered shape of an address broker.

Interesting

  • The handle is a fossil. Zurich Financial Services rebranded to Zurich Insurance Group in 2012, but the RIR object still carries ZFS-GROUP — a common pattern where the registry name outlives the company name by more than a decade.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 2 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS32787Akamai Technologies, Inc.420
AS8220COLT Technology Services Group Limited174

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-14, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 2 prefixes · 73.73K addresses IPv6 0 prefixes

CountryNamePrefixes
CHSwitzerland2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS8640
Registry name
ZFS-GROUP
Registrant
Zurich Insurance Company AG
Abuse contact
dns.admin@zurich.com
Registered
1970-01-01
Last changed
2017-11-15
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
0% valid · 0 valid, 10 with no ROA
ROAs
0 authorising AS8640
ASPA
no ASPA record
IRR
100% registered · 10 of 10 announcements
Route objects
7 naming AS8640

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 1,772 prefixes, as published 2026-10-15. 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

Cross-check