asn.dev

Autonomous system

AS8522 FORTH-AS

Education RIPE

IPv4 addresses 65.79K 17 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly GR
Exchanges 0 recorded by PCH
Upstreams 2 6 downstream
Flagged prefixes 0 none

Summary

FORTH (Foundation for Research and Technology Hellas)

Greece · AI-generated

education research legacy

FORTH-AS belongs to the Foundation for Research and Technology – Hellas, Greece's largest research centre, headquartered in Heraklion, Crete. Its Institute of Computer Science (ICS-FORTH) runs the network, which also served as one of the earliest internet nodes in Greece.

What it's used for

  • Campus and institute connectivity for FORTH's research institutes and their staff, laboratories and servers.
  • Hosting for research infrastructure and shared services run by ICS-FORTH, including measurement and monitoring nodes for international projects.

Notable

  • The core of the inventory is the legacy 139.91.0.0/16 — a full class-B equivalent, about 65,000 addresses, held by a single research foundation. That scale of assignment is a hallmark of an early allocation rather than of the network's present-day size.
  • rDNS is almost entirely ics.forth.gr: name servers, mail gateways and institutional hosts. Guest research nodes appear inside the block too — for example a monitoring host belonging to Brazil's registro.br — which is normal for a research campus that hosts probes for international projects.
  • No dynamic, DSL or subscriber naming anywhere: institutional address space throughout.

Interesting

  • FORTH's networking group has a long history in Greek and European research networking, and the low AS number together with the /16 reflects its role in connecting Greece to the early internet.

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

2 upstream, 6 downstream and 13 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS5408National Infrastructures for Research and Technology S.A.158
AS56910Digital Realty Hellas Single Member S.A130

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

Shape and geography

IPv4 17 prefixes · 65.79K addresses IPv6 1 prefixes

CountryNamePrefixes
GRGreece18

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS8522
Registry name
FORTH-AS
Registrant
FORTH-NOC-MNT
Abuse contact
abuse@ics.forth.gr
Registered
1970-01-01
Last changed
2021-06-08
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 5 valid, 0 with no ROA
ROAs
9 authorising AS8522
ASPA
no ASPA record
IRR
100% registered · 5 of 5 announcements
Route objects
9 naming AS8522

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 1,773 prefixes, as published 2026-10-13. 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