Autonomous system
AS25353 BAR-AS Weidenweg 235
Unclassified RIPE
Summary
BAR Informatik AG
isp switzerland business residential
The AS handle BAR-AS is held by BAR Informatik AG, a Swiss internet service provider.
What it's used for
- The address space carries customer and internal infrastructure, evidenced by reverse DNS entries such as
bar-203-E254.rhone.chandzt.cust.wnd.ch. - With 6,400 IPv4 addresses announced across 3 prefixes and only 2 observed neighbours, the ratio indicates an access or eyeball network rather than a transit provider.
Notable
- Registrants for the two largest prefixes (81.201.192.0/20 and 46.235.56.0/21) are BAR Informatik AG, while the smallest prefix (193.162.79.0/24) is registered to WND AG, suggesting a distinct operational or historical relationship.
- The inventory consists of three IPv4 prefixes and one IPv6 prefix, all announced from Switzerland.
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
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-15, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 3 prefixes · 6.40K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| CH | Switzerland | 4 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS25353- Registry name
- BAR-AS
- Registrant
- BAR-MNT
- Abuse contact
- registry@barinformatik.ch
- Registered
- 2002-10-14
- Last changed
- 2021-08-18
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 4 valid, 0 with no ROA
- ROAs
- 4 authorising AS25353
- ASPA
- no ASPA record
- IRR
- 100% registered · 4 of 4 announcements
- Route objects
- 4 naming AS25353
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 1,781 prefixes, as published 2026-10-16. 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