🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS9121, with the network's IPv6 and DNSSEC adoption and its observed prefixes. An autonomous system is the routing identity of a hosting company or ISP. Data comes from our own scanners, which re-resolve every .dk domain in the zone roughly once a week.

📈 Domains over time#

109 days
223332026-07-012026-08-242026-10-17
3 latest+1 over 109 days

Active .dk domains whose website address (A record) is announced by AS9121, counted once a day.

🌐 AS9121 at a glance#

Turk Telekom

AS9121 is announced by Turk Telekom (Türkiye) and currently hosts 3 .dk domains in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 3 unique IPv4 addresses on this network, and the domains currently sit in 2 IPv4 CIDR blocks covering roughly 589.8 thousand addresses of IPv4 space.

We have yet to observe any IPv6 (AAAA) hosting on this AS.

The network is part of the .dk zone's infrastructure too: 2 distinct nameservers and 1 distinct mail exchanger serving .dk domains currently resolve to addresses announced by this AS.

On the security side, 2 of the domains hosted here (66.7%) validate as DNSSEC-secure — below the zone-wide average for domains with a web address, 70.5%. See how this AS compares on the ASN statistics page, or drill into the CIDR list below the results.

🛰️ Upstream providers of AS9121#

via ipbot.dk

TTNet Turk Telekomunikasyon Anonim Sirketi announces 483 prefixes (340 IPv4, 143 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS1299TWELVE99 Arelion Sweden AB
100.0%
AS3356Level 3 Parent, LLC
77.4%
AS2914NTT-DATA-2914 - NTT America, Inc.
65.4%
AS12735ASTurkNet TurkNet Iletisim Hizmetleri A.S.
53.9%
AS6939Hurricane Electric LLC
26.2%
AS3257GTT-BACKBONE GTT Communications Inc.
25.7%
AS3320DTAG Deutsche Telekom AG
18.8%
AS33891Core-Backbone GmbH
5.4%
AS9002RETN Limited
4.8%
AS3303Swisscom (Schweiz) AG
4.7%

Upstream and prefix data supplied by ipbot.dk; power is relative to the strongest upstream.

🔻 Networks using AS9121 as upstream#

15 networks
NetworkNameDomainsPower
AS48678TR-PENTECH-AS Pentech Bilisim Teknolojileri Sanayi Ve Ticaret Limited Sirketi—
100.0%
AS6205HizliNet Teknoloji A.S.—
5.5%
AS42910PremierDC Veri Merkezi Anonim Sirketi—
1.6%
AS51559Netinternet Bilisim Teknolojileri AS—
1.1%
AS44558Netonline Bilisim Sirketi LTD—
1.0%
AS34984TELLCOM-AS Superonline Iletisim Hizmetleri A.S.—
0.8%
AS206375NETSPEED INTERNET A.S.—
0.8%
AS6663TTI-NET Euroweb Romania S.R.L.—
0.7%
AS208972gibirnet-tr GIBIRNET ILETISIM HIZMETLERI SANAYI VE TICARET LIMITED SIRKETI—
0.7%
AS60446Datema Bilisim Ticaret Anonim Sirketi—
0.6%
AS47524AS-TURKSAT Turksat Uydu Haberlesme Kablo TV ve Isletme A.S.—
0.5%
AS43391NETDIREKT BILISIM DANISMANLIK ILETISIM HIZMETLERI SANAYI VE TICARET AS—
0.4%
AS12735ASTurkNet TurkNet Iletisim Hizmetleri A.S.—
0.4%
AS7768TEKNET Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAYAR TEKNOLOJILERI—
0.3%
AS15924BORUSANTELEKOM-AS Vodafone Net Iletisim Hizmetler AS—
0.2%

Among the networks we hold ipbot.dk routing data for (the ones looked up on this site), so this is a sample of the AS's customers, not all of them.

📡 Known CIDRs#

2 CIDRs
CIDRDomains
212.175.0.0/16 2
95.8.0.0/13 1

🧭 Nameservers in this AS#

2 hosts

📮 Mail Exchangers in this AS#

1 host
HostnameDomains
mail3.deva.com.tr 1
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