🌐 Reverse ASN Lookup

Find all domains hosted on this ASN

Every .dk domain whose website address (A record) is announced by AS199990, 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#

113 days
011222026-07-012026-08-262026-10-21
1 latest0 over 113 days

Active .dk domains whose website address (A record) is announced by AS199990, counted once a day.

🌐 AS199990 at a glance#

Localhost As

AS199990 is announced by Localhost As (Norway) 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 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: 2 distinct nameservers 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 AS199990#

via ipbot.dk

LOCALHOST AS announces 3 prefixes (1 IPv4, 2 IPv6) and reaches the internet through 3 upstream networks.

UpstreamNamePower
AS2119Telenor Norge AS
100.0%
AS2116GLOBALCONNECT AS
68.7%
AS35132Enivest AS
1.0%

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

Found 1 domain matching 199990
DomainIPASNISP / OrgCountry
itbase.dk 5.158.193.112 AS199990 Localhost As 🇳🇴 Norway

📡 Known CIDRs#

1 CIDR
CIDRDomains
5.158.192.0/21 1

🧭 Nameservers in this AS#

2 hosts
HostnameDomains
ns.itbase.com 1
ns.itbase.no 1
dhd.dk [/] search Domains, Hosts & DNS — .dk zone