asn.dev

Autonomous system

AS211249 YILDIZ-EDU-NET

Unclassified RIPE

IPv4 addresses 7.94K 9 prefixes
IPv6 prefixes 0 counted as prefixes, not addresses
Countries 1 mostly TR
Exchanges 0 recorded by PCH
Upstreams 1 0 downstream
Flagged prefixes 0 none

Summary

Yildiz Technical University

Turkey · AI-generated

education university turkey

The AS handle YILDIZ-EDU-NET is held by Yildiz Technical University.

What it's used for

  • The address space carries university network traffic, identified by the consistent netname YILDIZ-NET across all announced prefixes.
  • The network announces 7,936 IPv4 addresses across 9 prefixes with only 1 observed neighbour, indicating a stub or access network rather than a transit provider.
  • Traffic from this AS consists of academic and research endpoints, student and staff access, and institutional services associated with a major Turkish university.

Notable

  • All registrants for the announced prefixes are listed as Abuse-C Role with the netname YILDIZ-NET, which aligns with the AS holder identity.
  • The address inventory is composed of multiple /22, /23, and /24 blocks, reflecting a segmented internal corporate or institutional estate.

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
AS8517National Academic Network and Information Center576

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-28, 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 9 prefixes · 7.94K addresses IPv6 0 prefixes

CountryNamePrefixes
TRTurkey9

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS211249
Registry name
YILDIZ-EDU-NET
Registrant
Yildiz Teknik Universitesi
Abuse contact
abuse@yildiz.edu.tr
Registered
2021-05-28
Last changed
2023-11-07
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 9 valid, 0 with no ROA
ROAs
9 authorising AS211249
ASPA
no ASPA record
IRR
100% registered · 9 of 9 announcements
Route objects
9 naming AS211249

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: 448 networks and 1,851 prefixes, as published 2026-10-29. 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