asn.dev

Autonomous system

AS204988 TDH-NET TDH-Net ApS

Unclassified RIPE

IPv4 addresses 1.02K 1 prefixes
IPv6 prefixes 1 counted as prefixes, not addresses
Countries 1 mostly DK
Exchanges 0 recorded by PCH
Upstreams 2 0 downstream
Flagged prefixes 0 none

Summary

TDH-Net ApS

Denmark · AI-generated

business telephony internet denmark

TDH-NET is operated by TDH-Net ApS, a Danish provider of telephony and internet solutions.

What it's used for

  • The address space is registered under the netname DK-TDH-NET-20171101 with registrant TDH-Net ApS, indicating a corporate allocation for the company's own infrastructure.
  • The AS announces 1024 IPv4 addresses in a single /22 prefix (185.229.148.0/22) and one IPv6 prefix (2a0d:9e00::/29), with only 2 observed routing neighbours. This low neighbour count relative to the address block suggests a small-scale access or business network rather than a transit provider.
  • Traffic from this AS consists of business internet and VoIP services provided to local clients, including municipalities and private businesses in the Copenhagen area.

Notable

  • The registrant TDH-Net ApS matches the AS holder, confirming consistent ownership of the address space.
  • The inventory is compact, consisting of a single IPv4 /22 block and a single IPv6 /29 prefix, typical for a small regional service provider.

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

Full topology · Graph

Internet exchanges

No exchange port on file. Many exchanges publish no participant list, so this is not proof of absence.

Transit providers

2 upstream, 0 downstream and 3 adjacent networks observed; most-used upstreams first.

ASNetworkPaths seen
AS3342Cibicom A/S66
AS48374MH HOLDING AF 1. JUNI 2009 ApS23

Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-11-09, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.

Address space

Summary

Shape and geography

IPv4 1 prefixes · 1.02K addresses IPv6 1 prefixes

CountryNamePrefixes
DKDenmark2

Registry

Allocation record

RIPE · via Atlas (registry + RDAP)
Registry
RIPE
Handle
AS204988
Registry name
TDH-NET
Registrant
dk-tdh-net-1-mnt
Abuse contact
abuse@tdh-net.dk
Registered
2017-11-24
Last changed
2018-09-04
Allocation
allocated

Routing security

RPKI and IRR

Full detail
RPKI
100% valid · 2 valid, 0 with no ROA
ROAs
3 authorising AS204988
ASPA
no ASPA record
IRR
100% registered · 2 of 2 announcements
Route objects
3 naming AS204988

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: 454 networks and 1,854 prefixes, as published 2026-11-09. 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

Cross-check