asn.dev

Autonomous system

AS8517 ULAKNET

Education RIPE Educational/Research

IPv4 addresses 230K 134 prefixes
IPv6 prefixes 47 counted as prefixes, not addresses
Countries 1 mostly TR
Exchanges 0 recorded by PCH
Upstreams 3 24 downstream
Flagged prefixes 0 none

Summary

ULAKNET

Turkey · AI-generated

education research legacy

ULAKNET is Turkey's national research and education network, operated by ULAKBİM, the Turkish Academic Network and Information Centre, an institute of the national research council TÜBİTAK. It is the country's NREN: the network that connects Turkish universities to each other, to GÉANT and to the wider internet.

What it's used for

  • Backbone and access connectivity for public and private universities, research institutes, and other academic bodies across Turkey.
  • Shared academic services run by ULAKBİM — mirrors, national e-resource licensing, identity federation and the country's academic addressing.

Notable

  • The AS carries a large inventory for an NREN: roughly 300,000 addresses, including a full 194.27.0.0/16 plus 161.9.128.0/17, 95.183.128.0/17 and a set of 193.255.x /24s.
  • rDNS resolves straight onto edu.tr campuses — hosts under gazi.edu.tr, kocaeli.edu.tr and their peers. Much of the space is delegated to member universities that run their own naming, so many addresses answer nothing at all.
  • Large parts of the block are university-side end-user space rather than provider infrastructure, but the users are students and staff on campus, not consumer broadband subscribers.

Interesting

  • Because ULAKNET numbers so many institutions out of one AS, the individual campus is invisible in BGP — the university boundary shows up only in DNS.

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

3 upstream, 24 downstream and 33 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS12735TurkNet Iletisim Hizmetleri A.S.2,084
AS21320GEANT Vereniging69
AS20965GEANT Vereniging50

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-13, 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 134 prefixes · 230K addresses IPv6 47 prefixes

CountryNamePrefixes
TRTurkey181

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS8517
Registry name
ULAKNET
Registrant
National Academic Network and Information Center
Abuse contact
abuse@ulakbim.gov.tr
Registered
1970-01-01
Last changed
2020-12-18
Allocation
allocated

Declared

PeeringDB profile

self-reported
Name
ULAKNET
Also known as
TUBITAK ULAKBIM
Network type
Educational/Research
Scope
Europe
Traffic ratio
Mostly Inbound
Peering policy
Open
Website
http://www.ulakbim.gov.tr

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 39 valid, 0 with no ROA
ROAs
56 authorising AS8517
ASPA
no ASPA record
IRR
100% registered · 39 of 39 announcements
Route objects
134 naming AS8517

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: 436 networks and 1,771 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