Autonomous system
AS1853 ACONET ACOnet Backbone
Unclassified RIPE
Summary
ACOnet (Austrian NREN)
education research legacy
ACOnet (ACONET) is Austria's national research and education network, serving science, research, education, art, and culture. It is operated by the Computer Center of the University of Vienna.
What it's used for
- A nationwide fibre backbone connecting Austrian universities and research institutions, with high-performance links to the pan-European GÉANT network.
Notable
- A national research and education network (NREN), not a commercial ISP.
Interesting
- Operated by the University of Vienna since 1992, which also runs the Vienna Internet Exchange; a genuinely early allocation rather than a reissued low number.
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
Recorded at 1 exchange in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| Vienna Internet Exchange | Vienna, Austria | 193.203.0.1 |
Transit providers
11 upstream, 48 downstream and 92 adjacent networks observed; most-used upstreams first.
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
IPv4 31 prefixes · 334K addresses IPv6 32 prefixes
| Country | Name | Prefixes |
|---|---|---|
| AT | Austria | 63 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS1853- Registry name
- ACOnet
- Registrant
- ACONET-LIR-MNT
- Abuse contact
- cert@aco.net
- Registered
- 2002-09-19
- Last changed
- 2026-10-02
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 32% valid · 6 valid, 13 with no ROA
- ROAs
- 10 authorising AS1853
- ASPA
- no ASPA record
- IRR
- 100% registered · 19 of 19 announcements
- Route objects
- 38 naming AS1853
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