AS8220 is announced by COLT Technology Services Group Limited (United Kingdom) and currently hosts 127 .dk domains in our dataset — 0.01% of all scanned .dk domains. Across all our scans we have observed 42 unique IPv4 addresses on this network, and the domains currently sit in 19 IPv4 CIDR blocks covering roughly 393.5 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: 18 distinct nameservers and 27 distinct mail exchangers serving .dk domains currently resolve to addresses announced by this AS.
On the security side, 53 of the domains hosted here (41.7%) validate as DNSSEC-secure — below the zone-wide average of 62.7%. See how this AS compares on the ASN statistics page, or drill into the CIDR list below the results.
| CIDR | Domains |
|---|---|
| 80.80.0.0/19 | 54 |
| 80.169.32.0/19 | 16 |
| 62.23.0.0/16 | 11 |
| 213.61.0.0/16 | 10 |
| 217.110.0.0/19 | 9 |
| 84.16.160.0/19 | 5 |
| 217.111.64.0/18 | 4 |
| 213.27.128.0/17 | 4 |
| 213.41.0.0/17 | 2 |
| 212.35.96.0/19 | 2 |
| 213.86.128.0/17 | 2 |
| 62.96.128.0/18 | 1 |
| 213.229.128.0/18 | 1 |
| 194.223.128.0/19 | 1 |
| 213.215.128.0/17 | 1 |
| 212.123.192.0/18 | 1 |
| 212.31.224.0/19 | 1 |
| 46.28.184.0/24 | 1 |
| 217.111.0.0/19 | 1 |
| Hostname | Domains |
|---|---|
| ns0.lon.auth.colt.net | 17 |
| ns1.fra.auth.colt.net | 17 |
| ns8.colt.net | 8 |
| ns0.dk.colt.net | 8 |
| ns1.dk.colt.net | 8 |
| ns1.de.colt.net | 6 |
| ns0.de.colt.net | 5 |
| ns.it.colt.net | 3 |
| ns2.it.colt.net | 3 |
| gate1.psi.de | 2 |
| ns0.uk.colt.net | 2 |
| ns1.uk.colt.net | 2 |
| ns1.se.colt.net | 2 |
| ns1.doblenet.com | 1 |
| ns2.doblenet.com | 1 |
| ns1.euroclix.nl | 1 |
| ns1.zetes.com | 1 |
| frparns01.enea.com | 1 |