Autonomous system
AS204171 TD-K
Unclassified RIPE
Summary
TD-K A/S
denmark small ipv4 ipv6
The AS handle TD-K is held by TD-K A/S.
What it's used for
- The space carries a single IPv4 block with netname
DK-TD-K-20150608and one IPv6 prefix. - It announces 1024 IPv4 addresses and 1 IPv6 prefix, with 2 observed neighbours.
- The low neighbour count relative to the address space suggests a small, self-contained network rather than a transit provider.
Notable
- The registrant
TD-K A/Smatches the AS holder name. - The address inventory consists of one contiguous /22 IPv4 block and one /29 IPv6 prefix.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-26, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 1 prefixes · 1.02K addresses IPv6 1 prefixes
| Country | Name | Prefixes |
|---|---|---|
| DK | Denmark | 2 |
Registry
Allocation record
- Registry
- RIPE
- Handle
AS204171- Registry name
- TD-K
- Registrant
- dk-td-k-1-mnt
- Abuse contact
- info@td-k.dk
- Registered
- 2015-08-06
- Last changed
- 2025-11-24
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 100% valid · 5 valid, 0 with no ROA
- ROAs
- 5 authorising AS204171
- ASPA
- no ASPA record
- IRR
- 100% registered · 5 of 5 announcements
- Route objects
- 5 naming AS204171
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 445 networks and 1,817 prefixes, as published 2026-10-27. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere