asn.dev

Autonomous system

AS12402 UOPIRAEUS

Unclassified RIPE

IPv4 addresses 4.61K 4 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 Piraeus

Greece · AI-generated

university education research legacy

The campus network of a Greek university, reached through the national research network.

What it's used for

  • Campus and departmental connectivity. 4,608 addresses in four IPv4 prefixes, one IPv6 /48, a single observed BGP neighbour.

Notable

  • All four prefixes share the netname UOPIRAEUS-NET and are registered to the University of Piraeus NOC — the operators, named as the responsible party rather than the institution.
  • The IPv6 announcement is 2001:648:24a0::/48, a /48 carved out of 2001:648::/32. The IPv4 blocks come from two separate ranges, 195.251 and 83.212.
  • One neighbour. A campus network reaches the internet through the research network and nothing else.

Interesting

  • Reverse DNS is organised by department, not by building or by subnet. noc.unipi.gr holds subnetCSVM and subnetTECH; ted.unipi.gr holds xifi122 and lab30760; naf.unipi.gr holds mstam3. Machines named for a project, a lab inventory number and somebody's initials, filed under the department that bought them.
  • The subnet-prefixed names are a network team's own convention: an address named after the subnet it anchors, so that a traceroute reads as a map. Universities produce more legible reverse DNS than most commercial networks because the people naming the machines are the people using them.

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.282

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 4 prefixes · 4.61K addresses IPv6 1 prefixes

CountryNamePrefixes
GRGreece5

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS12402
Registry name
UOPIRAEUS
Registrant
AS12402-MNT
Abuse contact
abuse@unipi.gr
Registered
1970-01-01
Last changed
2017-11-15
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
5 authorising AS12402
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
7 naming AS12402

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: 443 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