🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS42503, 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#

110 days
011222026-07-012026-08-242026-10-18
1 latest0 over 110 days

Active .dk domains whose website address (A record) is announced by AS42503, counted once a day.

🌐 AS42503 at a glance#

Oktawave S.A.

AS42503 is announced by Oktawave S.A. (Poland) 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 8.2 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: 1 distinct nameserver and no mail exchangers serving .dk domains currently resolve to addresses announced by this AS.

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 AS42503#

via ipbot.dk

PL-OKTAWAVE-AS Oktawave S.A. announces 4 prefixes (3 IPv4, 1 IPv6) and reaches the internet through 1 upstream network.

UpstreamNamePower
AS12741AS-NETIA Netia SA
100.0%

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

Found 1 domain matching 42503
DomainIPASNISP / OrgCountry
ziaja.dk 176.119.60.138 AS42503 Oktawave S.A. 🇵🇱 Poland

📡 Known CIDRs#

1 CIDR
CIDRDomains
176.119.32.0/19 1

🧭 Nameservers in this AS#

1 host
HostnameDomains
ns2.naturalhost.co.uk 3
dhd.dk [/] search Domains, Hosts & DNS — .dk zone