AS25384 — DMDATA-AS Denmark

AS25384 announces 10 IPv4 prefixes covering 30,976 addresses and 1 IPv6 prefixes.

About this network

The AS handle DMDATA-AS is held by Kyndryl Danmark ApS.

What it's used for

• The address space carries corporate IT infrastructure, evidenced by netnames such as DK-KYNDRYL1 and registrant details listing "Nordic Network Business Operations Manager" for Kyndryl Danmark ApS.
• With 30,976 IPv4 addresses across 19 prefixes and only 4 observed neighbours, the inventory represents a finely subdivided internal corporate estate rather than a public access or transit network.

Notable

• Registrants largely agree with the announcer, with most prefixes registered to Kyndryl Danmark ApS, though one prefix (193.162.8.0/22) is registered to VP Securities A/S under the netname DKGFM.
• Kyndryl was spun off from IBM's managed infrastructure services division in 2021, explaining the historical association with IBM Denmark seen in peering data.
• The address inventory consists of multiple /20, /21, and /22 blocks, indicating site-by-site segmentation typical of a large multinational enterprise.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 85.89.224.0/19
• 92.60.144.0/20
• 109.236.176.0/20
• 185.3.13.0/24
• 185.3.14.0/23
• 193.162.1.0/24
• 193.162.8.0/22
• 193.162.12.0/24
• 193.162.192.0/19
• 217.10.16.0/20
• 2001:15f8:c00::/48

Upstream networks

• AS8220 COLT Technology Services Group Limited
• AS31027 GlobalConnect A/S

Downstream networks

• AS34506 Dagrofa ApS
• AS60616 Kyndryl Finland Oy

Adjacent networks

• AS8220 COLT Technology Services Group Limited
• AS31027 GlobalConnect A/S
• AS34506 Dagrofa ApS
• AS60616 Kyndryl Finland Oy

Routing security

• RPKI: 11 valid, 1 invalid and 6 not-found announcements; 15 ROAs.
• ASPA: none published.
• IRR: 100% of announcements registered; 103 route objects.
• Listed in as-sets: AS-AS25384, AS-DMDATADK, AS-TDCNETDK, AS31027:AS-GCNETDK.