asn.dev

Autonomous system

AS25164 FLUGHAFEN-ZUERI

Unclassified ARIN

IPv4 addresses 2.56K 3 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly CH
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

Flughafen Zürich AG

Switzerland · AI-generated

airport business infrastructure

The AS handle FLUGHAFEN-ZUERI is operated by Flughafen Zürich AG.

What it's used for

  • The address space carries internal airport infrastructure, evidenced by netnames Airport-NET-Customer-Access and Flughafen-Zuerich-NET.
  • The AS announces 2560 IPv4 addresses across 3 prefixes and 1 IPv6 prefix, with only 2 observed neighbours, indicating a self-contained corporate network rather than a transit provider.

Notable

  • Registrants for the largest prefixes are Flughafen Zuerich AG Team and Flughafen Zurich AG, consistent with the announcer.
  • The inventory consists of three distinct IPv4 blocks: 45.142.224.0/22, 194.146.212.0/22, and 193.192.232.0/23, alongside the IPv6 prefix 2a01:200::/32.

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 4 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS13030Init7 (Switzerland) Ltd.161
AS6730Sunrise GmbH48

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 3 prefixes · 2.56K addresses IPv6 1 prefixes

CountryNamePrefixes
CHSwitzerland4

Registry

Allocation record

ARIN · via Atlas (registry + RDAP)
Registry
ARIN
Handle
AS25164
Registry name
Flughafen-Zuerich
Registrant
Flughafen-Zuerich-MNT
Abuse contact
abuse@zurich-airport.com
Registered
2002-08-16
Last changed
2025-03-26
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 4 valid, 0 with no ROA
ROAs
5 authorising AS25164
ASPA
no ASPA record
IRR
100% registered · 4 of 4 announcements
Route objects
6 naming AS25164

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