View

If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	193.255.112.0/21	Yildiz University Computer Center
	95.183.138.0/23	Yildiz Technical University
	95.183.192.0/22	Yildiz Teknik Universitesi
	193.140.1.0/24	Yildiz Teknik University
	193.140.2.0/23	Yildiz Teknik University
	193.140.4.0/22	Yildiz Teknik University
	194.27.92.0/22	PROVIDER
	194.27.96.0/22	PROVIDER
	194.27.100.0/23	Yildiz Technical University

---

Network Policy

Click here to learn more about what this graph means and what makes up a network policy Global Aggregation Policy adoring_engelbart Policy relaxed_cartwright

Chart Display Options

Display links using non straight lines

Prefixes in selected policy

Load all prefixes in policy

---

How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS8517	National Academic Network and Information Center	✔	✘

---

Peers

	ASN	Description	IPv4	IPv6
	AS8517	National Academic Network and Information Center	✔	✘

aut-num:        AS211249
as-name:        YILDIZ-EDU-NET
org:            ORG-YTU1-RIPE
sponsoring-org: ORG-NANa1-RIPE
import:         from AS8517 accept ANY
export:         to AS8517 announce AS211249
import:         from AS12735 accept ANY
export:         to AS12735 announce AS211249
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ULAKNET-MNT
created:        2021-05-28T12:51:23Z
last-modified:  2023-11-07T08:06:25Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************


organisation:   ORG-YTU1-RIPE
org-name:       Yildiz Teknik Universitesi
country:        TR
org-type:       OTHER
address:        Dummy address for ORG-YTU1-RIPE
# Email removed, Log into bgp.tools to see whois emails/phone numbers
abuse-c:        YTUI1-RIPE
mnt-ref:        ULAKNET-MNT
mnt-by:         ULAKNET-MNT
created:        2021-05-21T12:33:52Z
last-modified:  2026-05-13T05:26:33Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Last Update: 2026-06-09T03:24:12Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-ulak-membrs	27
RIPE	as-retn-actual-v4	12810
RIPE	as-turknettr	338