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Autonomous System

AS9121 · TTNet Turk Telekomunikasyon Anonim Sirketi

Overview

AS9121 is announced on the Internet: RIPE RIS route collectors currently see 340 IPv4 prefixes and 142 IPv6 prefixes originated by this network. Together, its IPv4 prefixes cover 6,928,640 addresses, with overlapping prefixes counted once. In the paths the collectors record, it has 36 upstream neighbours (transit providers or peers) and 381 downstream neighbours (customers or networks it carries). Its most visible upstreams are Arelion Sweden AB (AS1299), Level 3 Parent, LLC (AS3356), and NTT America, Inc. (AS2914). AS9121 was assigned by RIPE NCC, and its registration country is Türkiye.

Source: RIPEstat (RIPE NCC), RIS route collectors. Read on October 18, 2026 at 9:40 AM UTC. This page is refreshed at most every 12 hours.

Go further

Trace a route to this networkOpen in the BGP viewerWHOIS of 78.160.0.1

The trace goes to 78.160.0.1, the first address of 78.160.0.0/11. An address picked inside a prefix may not answer (nothing listens there, or the network filters probes): the trace then shows the path up to the last network that replies.

Announced prefixes

IPv4 prefixes (340 prefixes)

PrefixAddresses
2.17.224.0/221,024
2.17.228.0/221,024
2.17.232.0/221,024
2.20.24.0/221,024
62.248.0.0/1732,768
78.160.0.0/112,097,152
78.160.0.0/1732,768
78.160.128.0/1732,768
78.161.0.0/1732,768
78.161.128.0/1732,768
78.162.0.0/1732,768
78.162.128.0/1732,768
78.163.0.0/1732,768
78.163.128.0/1732,768
78.164.0.0/1732,768
78.164.128.0/1732,768
78.165.0.0/1732,768
78.165.128.0/1732,768
78.166.0.0/1732,768
78.166.128.0/1732,768
78.167.0.0/1732,768
78.167.128.0/1732,768
78.168.0.0/1732,768
78.168.128.0/1732,768
78.169.0.0/1732,768
78.169.128.0/1732,768
78.170.0.0/1732,768
78.170.128.0/1732,768
78.171.0.0/1732,768
78.171.128.0/1732,768
78.172.0.0/1732,768
78.172.128.0/1732,768
78.173.0.0/1732,768
78.173.72.0/212,048
78.173.128.0/1732,768
78.174.0.0/1732,768
78.174.128.0/1732,768
78.175.0.0/1732,768
78.175.128.0/1732,768
78.176.0.0/1732,768
78.176.128.0/1732,768
78.177.0.0/1732,768
78.177.128.0/1732,768
78.178.0.0/1732,768
78.178.128.0/1732,768
78.179.0.0/1732,768
78.179.128.0/1732,768
78.180.0.0/1732,768
78.180.128.0/1732,768
78.181.0.0/1732,768
78.181.128.0/1732,768
78.182.0.0/1732,768
78.182.128.0/1732,768
78.183.0.0/1732,768
78.183.128.0/1732,768
78.184.0.0/1732,768
78.184.128.0/1732,768
78.185.0.0/1732,768
78.185.128.0/1732,768
78.186.0.0/1732,768
78.186.128.0/1732,768
78.187.0.0/1732,768
78.187.128.0/1732,768
78.188.0.0/1732,768
78.188.128.0/1732,768
78.189.0.0/1732,768
78.189.128.0/1732,768
78.190.0.0/1732,768
78.190.128.0/1732,768
78.191.0.0/1732,768
78.191.128.0/1732,768
81.212.0.0/14262,144
81.212.0.0/1732,768
81.212.126.0/24256
81.212.128.0/1732,768
81.212.190.0/24256
81.213.0.0/1732,768
81.213.40.0/212,048
81.213.48.0/24256
81.213.128.0/1732,768
81.214.0.0/1732,768
81.214.128.0/1732,768
81.214.198.0/24256
81.215.0.0/1732,768
81.215.128.0/1732,768
85.96.0.0/121,048,576
85.96.0.0/1732,768
85.96.128.0/1732,768
85.97.0.0/1732,768
85.97.128.0/1732,768
85.98.0.0/1732,768
85.98.128.0/1732,768
85.99.0.0/1732,768
85.99.128.0/1732,768
85.100.0.0/1732,768
85.100.128.0/1732,768
85.101.0.0/1732,768
85.101.128.0/1732,768
85.102.0.0/1732,768
85.102.128.0/1732,768

Showing the first 100 of 340, in address order. Complete list on RIPEstat

IPv6 prefixes (142 prefixes)

Prefix
2a00:1d32::/32
2a00:1d32::/36
2a00:1d32:1000::/36
2a00:1d32:2000::/36
2a00:1d32:3000::/36
2a00:1d32:4000::/36
2a00:1d32:5000::/36
2a00:1d32:6000::/36
2a00:1d32:7000::/36
2a00:1d32:8000::/36
2a00:1d32:9000::/36
2a00:1d32:a000::/36
2a00:1d32:b000::/36
2a00:1d32:c000::/36
2a00:1d32:d000::/36
2a00:1d32:e000::/36
2a00:1d32:f000::/36
2a00:1d33::/32
2a00:1d33::/36
2a00:1d33:1000::/36
2a00:1d33:2000::/36
2a00:1d33:3000::/36
2a00:1d33:4000::/36
2a00:1d33:5000::/36
2a00:1d33:6000::/36
2a00:1d33:7000::/36
2a00:1d33:8000::/36
2a00:1d33:9000::/36
2a00:1d33:a000::/36
2a00:1d33:b000::/36
2a00:1d33:c000::/36
2a00:1d33:d000::/36
2a00:1d33:e000::/36
2a00:1d33:f000::/36
2a00:1d34::/32
2a00:1d34::/36
2a00:1d34:1000::/36
2a00:1d34:2000::/36
2a00:1d34:3000::/36
2a00:1d34:4000::/36
2a00:1d34:5000::/36
2a00:1d34:6000::/36
2a00:1d34:7000::/36
2a00:1d34:8000::/36
2a00:1d34:9000::/36
2a00:1d34:a000::/36
2a00:1d34:b000::/36
2a00:1d34:c000::/36
2a00:1d34:d000::/36
2a00:1d34:e000::/36
2a00:1d34:f000::/36
2a00:1d36::/32
2a00:1d36::/36
2a00:1d36:1000::/36
2a00:1d36:2000::/36
2a00:1d36:3000::/36
2a00:1d36:4000::/36
2a00:1d36:5000::/36
2a00:1d36:6000::/36
2a00:1d36:7000::/36
2a00:1d36:8000::/36
2a00:1d36:9000::/36
2a00:1d36:a000::/36
2a00:1d36:b000::/36
2a00:1d36:c000::/36
2a00:1d36:d000::/36
2a00:1d36:e000::/36
2a00:1d36:f000::/36
2a00:1d37::/32
2a00:1d37::/36
2a00:1d37:1000::/36
2a00:1d37:2000::/36
2a00:1d37:3000::/36
2a00:1d37:4000::/36
2a00:1d37:5000::/36
2a00:1d37:6000::/36
2a00:1d37:7000::/36
2a00:1d37:8000::/36
2a00:1d37:9000::/36
2a00:1d37:a000::/36
2a00:1d37:b000::/36
2a00:1d37:c000::/36
2a00:1d37:d000::/36
2a00:1d37:e000::/36
2a00:1d37:f000::/36
2a01:358::/32
2a01:358::/36
2a01:358:1000::/36
2a01:358:1011::/48
2a01:358:1019::/48
2a01:358:1030::/48
2a01:358:1031::/48
2a01:358:1036::/48
2a01:358:1038::/48
2a01:358:1f10::/48
2a01:358:1f11::/48
2a01:358:2000::/36
2a01:358:2030::/48
2a01:358:2034::/48
2a01:358:2e10::/48

Showing the first 100 of 142, in address order. Complete list on RIPEstat

Neighbours

Upstreams (transit or peers) (36)

ASNetworkVisibility
AS1299Arelion Sweden AB32,344
AS3356Level 3 Parent, LLC24,919
AS2914NTT America, Inc.22,042
AS12735ASTurkNet TurkNet Iletisim Hizmetleri A.S.17,581
AS6939Hurricane Electric LLC8,779
AS3257GTT Communications Inc.8,754
AS3320Deutsche Telekom AG6,263
AS33891Core-Backbone GmbH2,590
AS3303Swisscom (Schweiz) AG1,551
AS9002RETN Limited1,486
AS8218Zayo Infrastructure France SA1,305
AS5405Inter.link GmbH1,184
AS20764CJSC RASCOM1,036
AS4455IX Reach Ltd898
AS37468Angola Cables868
AS2497Internet Initiative Japan Inc.831
AS20485Joint Stock Company TransTeleCom729
AS4657StarHub Ltd489
AS8220COLT Technology Services Group Limited464
AS208972GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI454
AS6663Euroweb Romania S.R.L.277
AS286GTT Communications Inc.263
AS6205-196
AS9498BHARTI Airtel Ltd.135
AS201178-67
AS34984Superonline Iletisim Hizmetleri A.S.56
AS8966EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC21
AS12389PJSC Rostelecom14
AS7713PT Telekomunikasi Indonesia13
AS15924Vodafone Net Iletisim Hizmetler AS7

The 30 most visible of 36.

Downstreams (customers) (381)

ASNetworkVisibility
AS1299Arelion Sweden AB60,264
AS3356Level 3 Parent, LLC32,070
AS2914NTT America, Inc.13,480
AS3257GTT Communications Inc.10,717
AS6205HizliNet Teknoloji A.S.8,145
AS6939Hurricane Electric LLC6,817
AS48678Pentech Bilisim Teknolojileri Sanayi Ve Ticaret Limited Sirketi5,500
AS9498BHARTI Airtel Ltd.4,741
AS43260DGN TEKNOLOJI A.S.2,994
AS9021Is Net Elektonik Bilgi Uretim Dagitim Ticaret ve Iletisim Hizmetleri A.S.2,390
AS42910PremierDC Veri Merkezi Anonim Sirketi2,239
AS51559-2,147
AS37468Angola Cables1,922
AS9002RETN Limited1,814
AS8220COLT Technology Services Group Limited1,572
AS20485Joint Stock Company TransTeleCom1,569
AS47883KIBRIS MOBILE TELEKOMUNIKASYON LTD.1,424
AS20978-1,412
AS5405Inter.link GmbH1,409
AS44558Netonline Bilisim Sirketi LTD1,349
AS12389PJSC Rostelecom1,329
AS33891Core-Backbone GmbH1,326
AS200010-1,251
AS8359MTS PJSC1,131
AS43356-1,115
AS43391-1,020
AS13335Cloudflare, Inc.1,008
AS34984Superonline Iletisim Hizmetleri A.S.1,003
AS6663Euroweb Romania S.R.L.932
AS47331-916

The 30 most visible of 381.

291 more neighbours appear on both sides of this network depending on the path, so they are counted in neither list.

Visibility is RIPEstat's count of how often the route collectors observed the link. It compares neighbours with each other; it is not a traffic volume.

How to read this page

An Autonomous System (AS) is a network run under one routing policy: an internet provider, a cloud, a content network, a university. Each one has a number, its ASN, assigned by a regional registry (ARIN, RIPE NCC, APNIC, LACNIC, AFRINIC), and uses BGP, the protocol networks use to tell each other where addresses are, to announce the blocks of addresses it delivers to.

A prefix such as 203.0.113.0/24 is a block of addresses: the number after the slash says how many bits are fixed, so a /24 holds 256 IPv4 addresses and a /16 holds 65,536. Networks often announce a large block and smaller pieces of it at the same time, which is why the address total counts each address once.

Neighbours come from the paths themselves. A network that appears just before this one in a path, on the collector's side, is an upstream: a transit provider or a peer. One that appears just after it is a downstream, usually a customer. Peering at an internet exchange also shows up as an upstream, so the upstream list is not a list of paid transit.

The data comes from RIPEstat, run by the RIPE NCC, which gathers the routing tables of hundreds of networks through its RIS route collectors. This page reads it when it is visited and keeps it for 12 hours at most; the BGP viewer reads it live.

Frequently asked questions

How do I find the ASN of an IP address?
Type the address in the BGP viewer: it shows the prefix that covers it, the AS that originates that prefix and the paths seen towards it. A traceroute also names the network of each hop, so you can see every AS a connection crosses.
Why does one company have several ASNs?
Large operators split their network by region, by activity or by history: a cloud may use one number for its backbone and another for a region, and every acquisition brings its own numbers. Each number has its own page, with its own prefixes and neighbours.
Why do prefix counts differ from one site to another?
Each source sees the routing table from different collectors, at a different time, and counts differently: some include prefixes withdrawn in recent weeks, some merge a block and its pieces. This page counts the prefixes RIPE RIS collectors see originated by the network at the end of the latest two-week window, and counts each IPv4 address once.
Is this the list of IP ranges of a cloud provider?
It is what its networks announce, which is what the Internet routes to them. Many providers also publish an official list of ranges per service and region; that list is the reference for firewall rules, because a range can be announced before it is used, or announced by another of their AS numbers.