🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS21476, 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#

117 days
445552026-07-012026-08-282026-10-25
4 latest0 over 117 days

Active .dk domains whose website address (A record) is announced by AS21476, counted once a day.

🌐 AS21476 at a glance#

all-connect Data Communications GmbH

AS21476 is announced by all-connect Data Communications GmbH (Germany) and currently hosts 4 .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 1 IPv4 CIDR block covering roughly 4.1 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, 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 AS21476#

via ipbot.dk

ASN-ACDC all-connect Data Communications GmbH announces 23 prefixes (22 IPv4, 1 IPv6) and reaches the internet through 10 upstream networks.

UpstreamNamePower
AS8881VERSATEL 1&1 Versatel GmbH
100.0%
AS21385TNIB Trusted Network GmbH
71.9%
AS6939Hurricane Electric LLC
31.5%
AS29632NASSIST-AS Netassist International EOOD
1.7%
AS34019Hivane Association
1.7%
AS34549meerfarbig GmbH & Co. KG
1.7%
AS35280F5 F5 Networks SARL
1.7%
AS35625Eurofiber France SAS
1.7%
AS4230CLARO S.A.
1.7%
AS12779IT.Gate S.p.A.
1.1%

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

📡 Known CIDRs#

1 CIDR
CIDRDomains
80.254.128.0/20 4

🧭 Nameservers in this AS#

2 hosts

📮 Mail Exchangers in this AS#

1 host
HostnameDomains
mx.mail-connect.net 1
dhd.dk [/] search Domains, Hosts & DNS — .dk zone