asn.dev

Autonomous system

AS200233 BFH

Unclassified RIPE

IPv4 addresses 67.84K 3 prefixes
IPv6 prefixes 2 counted as prefixes, not addresses
Countries 1 mostly CH
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Berner Fachhochschule

Switzerland · AI-generated

education university switzerland

BFH is operated by Berner Fachhochschule, a public vocational university in Switzerland.

What it's used for

  • The address space carries university infrastructure, evidenced by netnames bfh-ipv4, bfh-ti-ipv4, and BFH-OPEN-INFRASTRUCTURE-20230905, with reverse DNS pointing to web.open-infrastructure.net.
  • The AS announces 67,840 IPv4 addresses across 3 prefixes and 2 IPv6 prefixes, while maintaining only 1 observed neighbour, indicating an isolated academic network rather than a transit provider.
  • Traffic consists of campus users, research systems, and administrative endpoints for the university's various schools and departments.

Notable

  • Registrants for all announced prefixes consistently list Berner Fachhochschule and BFH IT-Services, aligning perfectly with the AS holder.
  • The inventory includes a large /16 block (147.87.0.0/16) alongside smaller /21 and /24 allocations, reflecting a standard academic address estate.
  • The AS was first seen in routing tables in March 2023, indicating a relatively recent autonomous system deployment for the institution.

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

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

ASNetworkPaths seen
AS559SWITCH254

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, 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 · 67.84K addresses IPv6 2 prefixes

CountryNamePrefixes
CHSwitzerland5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS200233
Registry name
bfh
Registrant
Berner Fachhochschule
Abuse contact
abuse@bfh.ch
Registered
2023-01-06
Last changed
2023-01-06
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
5 authorising AS200233
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
6 naming AS200233

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: 446 networks and 1,852 prefixes, as published 2026-10-27. 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