AS204171 TD-K A/S

Denmark TD-K RIPE 4 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

1,024

IPv6 /48 networks

524,288

RPKI

5 valid0 no ROA

Peers and downstreams

Holder

AS name: TD-K
Description: TD-K A/S
Organisation: TD-K A/S
Abuse contact: info@td-k.dk
Assigned: 2015-08-05
Registered: 2015-08-06
Record last changed: 2025-11-24 08:55 UTC

185.103.120.0/24 185.103.121.0/24 185.103.122.0/24 185.103.123.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 5 of 5 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 1 IPv6 prefix.	15/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
pass	Working abuse contact info@td-k.dk is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
pass	Registry record maintained Last changed 2025-11-24.	5/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/204171"><img src="https://ip-fd.net/badge/asn/204171/health.svg" alt="AS204171 network health on IP-FD.net"></a>

Markdown

[![AS204171 network health](https://ip-fd.net/badge/asn/204171/health.svg)](https://ip-fd.net/asn/204171)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS204171
as-name:        TD-K
org:            ORG-TA912-RIPE
admin-c:        JS16940-RIPE
tech-c:         IR2144-RIPE
admin-c:        IR2144-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         dk-td-k-1-mnt
created:        2015-08-06T12:07:13Z
last-modified:  2025-11-24T08:55:10Z
source:         RIPE
% 4 routing policy lines (import/export) not shown

Routing data

Updated just now

Registry record

Fetched just now from RIPE

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/204171

const res = await fetch('https://ip-fd.net/api/v1/asn/204171', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/204171', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/204171');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/204171", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

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