asn.dev

Autonomous system

AS8581 UOI

Education RIPE

IPv4 addresses 9.47K 7 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly GR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

University of Ioannina

Greece · AI-generated

education university research legacy

The University of Ioannina (UOI), a public university in Epirus, north-western Greece. The AS carries the campus network and its departmental subnets.

What it's used for

  • Campus networking for faculties, labs, libraries and administration: reverse DNS on the announced space resolves to departmental hosts such as pc-1.econ.uoi.gr, pc-1.med.uoi.gr and pc1.math.uoi.gr.
  • Network operations infrastructure sits under noc.uoi.gr (mq.noc.uoi.gr, ifw.noc.uoi.gr), the university's own NOC.
  • Around 9,500 IPv4 addresses across seven prefixes, plus IPv6.

Notable

  • The address space is a mix of 195.130.x, 195.251.x and 83.212.x blocks, the last of which is GRNET (the Greek Research and Technology Network) space, consistent with a Greek university connected through the national research network.
  • One announced /24 carries wwwserver.ioa.teiep.gr reverse DNS, from the former Technological Educational Institute of Epirus, which was merged into the University of Ioannina in 2019. The routing still reflects that merger.

Interesting

  • With a single observed neighbour, the AS is effectively single-homed to the research network rather than multi-homed to commercial transit, which is typical for an NREN-connected campus.

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
AS5408National Infrastructures for Research and Technology S.A.468

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-24, 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 7 prefixes · 9.47K addresses IPv6 1 prefixes

CountryNamePrefixes
GRGreece8

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS8581
Registry name
UOI
Registrant
University Of Ioannina
Abuse contact
abuse@uoi.gr
Registered
1970-01-01
Last changed
2017-11-15
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 8 valid, 0 with no ROA
ROAs
10 authorising AS8581
ASPA
no ASPA record
IRR
100% registered · 8 of 8 announcements
Route objects
10 naming AS8581

Reputation

Classification and threat

Education University, school or national research and education network.

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 1,779 prefixes, as published 2026-10-24. 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