asn.dev

Autonomous system

AS59891 FSIT

Hosting APNIC

IPv4 addresses 2.05K 2 prefixes
IPv6 prefixes 3 counted as prefixes, not addresses
Countries 1 mostly CH
Exchanges 2 recorded by PCH
Upstreams 7 1 downstream
Flagged prefixes 0 none

Summary

FSIT AG

Switzerland · AI-generated

hosting datacenter switzerland

FSIT is operated by FSIT AG.

What it's used for

  • The address space carries hosted services and data center infrastructure, evidenced by netnames CH-FSITAG-20130806 and CH-FSITAG-20160502 registered to FSIT AG IT Operation.
  • The AS announces 2048 IPv4 addresses across 2 prefixes and 3 IPv6 prefixes, while maintaining 203 observed neighbours; this high neighbour-to-address ratio indicates a transit or peering-heavy role typical of a data center provider.
  • Traffic from this AS consists of web hosting, VPS, dedicated servers, and colocation services for businesses located in Swiss data centers.

Notable

  • Registrants for both announced IPv4 prefixes are consistent with the announcer, listing FSIT AG IT Operation and FSIT AG RIPE Admin.
  • The address inventory is compact, consisting of two /22 blocks in IPv4 and three distinct /29 or /48 blocks in IPv6, reflecting a focused corporate estate rather than a large residential footprint.

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

Recorded at 2 exchanges in 1 country, largest first.

ExchangeLocationTheir address
4b42 Internet Exchange PointZurich, Switzerland185.1.125.46
SwissIXZurich, Switzerland91.206.52.141

Transit providers

7 upstream, 1 downstream and 13 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS6939Hurricane Electric LLC531
AS13030Init7 (Switzerland) Ltd.414
AS51395Datasource AG114
AS24482SG.GS25
AS1836green.ch AG17
AS9002RETN Limited17
AS34019Hivane Association8

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 · 2.05K addresses IPv6 3 prefixes

CountryNamePrefixes
CHSwitzerland5

Registry

Allocation record

APNIC · via Atlas (registry + RDAP)
Registry
APNIC
Handle
AS59891
Registry name
FSIT
Registrant
MNT-FSIT
Abuse contact
abuse@fsit.com
Registered
2014-08-20
Last changed
2025-02-10
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 25 valid, 0 with no ROA
ROAs
25 authorising AS59891
ASPA
no ASPA record
IRR
100% registered · 25 of 25 announcements
Route objects
26 naming AS59891

Reputation

Classification and threat

Hosting Datacenter or cloud provider. Addresses are servers, not people.

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