🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS209097, 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#

82 days
011222026-07-012026-09-062026-10-17
1 latest0 over 82 days

Active .dk domains whose website address (A record) is announced by AS209097, counted once a day.

🌐 AS209097 at a glance#

Netsyst SAS

AS209097 is announced by Netsyst SAS (France) and currently hosts 1 .dk domain in our dataset — <0.01% of all scanned .dk domains. Across all our scans we have observed 1 unique IPv4 address on this network, and the domains currently sit in 1 IPv4 CIDR block covering roughly 1 thousand addresses of IPv4 space.

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

We have not observed any nameservers or mail exchangers for .dk domains on this AS — the domains hosted here run their DNS and mail from other networks.

On the security side, 0 of the domains hosted here (0.0%) 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 AS209097#

via ipbot.dk

NETSYST SAS announces 22 prefixes (10 IPv4, 12 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS2027MilkyWan Association
100.0%
AS62000SERVERD SAS
73.3%
AS35625Eurofiber France SAS
25.5%
AS6939Hurricane Electric LLC
18.4%
AS1299TWELVE99 Arelion Sweden AB
12.6%
AS174Cogent Communications, LLC
12.6%
AS6057Administracion Nacional de Telecomunicaciones
1.2%
AS34177Celeste SAS
0.8%
AS5405INTERDOTLINK Inter.link GmbH
0.8%
AS29075IELO-LIAZO SERVICES SAS
0.6%

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

🔻 Networks using AS209097 as upstream#

1 network
NetworkNameDomainsPower
AS3215Orange S.A.—
100.0%

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.

Found 1 domain matching 209097
DomainIPASNISP / OrgCountry
eurostudy.dk 5.182.146.197 AS209097 Netsyst SAS 🇫🇷 France

📡 Known CIDRs#

1 CIDR
CIDRDomains
5.182.144.0/22 1
dhd.dk [/] search Domains, Hosts & DNS — .dk zone