asn.dev

Autonomous system

AS20813 HOU-AS Patra Greece

Unclassified RIPE

IPv4 addresses 1.02K 2 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly GR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Hellenic Open University

Greece · AI-generated

education university greece

The AS handle HOU-AS is held by Hellenic Open University.

What it's used for

  • The address space carries the university's internal network, identified by the netname HOUnet on both announced prefixes.
  • The AS announces 1024 IPv4 addresses across 2 prefixes and maintains 1 observed neighbour, a ratio consistent with a small, self-contained institutional network rather than a transit or large-scale access provider.

Notable

  • The registrants for both prefixes, 193.108.160.0/23 and 194.24.226.0/23, are listed as Hellenic Open University, matching the AS holder.
  • The address inventory consists of two contiguous /23 blocks, indicating a modest and stable allocation 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 1 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS5408National Infrastructures for Research and Technology S.A.124

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 2 prefixes · 1.02K addresses IPv6 0 prefixes

CountryNamePrefixes
GRGreece2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS20813
Registry name
HOU-AS
Registrant
HOU-MNT
Abuse contact
abuse@eap.gr
Registered
1970-01-01
Last changed
2017-11-15
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
2 authorising AS20813
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
2 naming AS20813

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