AS204405 Durnet.cz sro

Czechia DurnetCZ RIPE 0 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

IPv6 /48 networks

65,536

RPKI

1 valid0 no ROA

Peers and downstreams

Holder

AS name: DurnetCZ
Description: Durnet.cz sro
Organisation: Durnet.cz sro
Abuse contact: info@durnet.cz
Assigned: 2018-03-15
Registered: 2018-03-16
Record last changed: 2020-11-16 17:52 UTC

None announced.

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 80/100

pass	Prefixes covered by valid ROAs 1 of 1 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
partly	More than one upstream 1 upstream seen in BGP.	5/10
pass	Working abuse contact info@durnet.cz 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
fail	Registry record maintained Last changed 2020-11-16.	0/5

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/204405"><img src="https://ip-fd.net/badge/asn/204405/health.svg" alt="AS204405 network health on IP-FD.net"></a>

Markdown

[![AS204405 network health](https://ip-fd.net/badge/asn/204405/health.svg)](https://ip-fd.net/asn/204405)

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

Routing changes

Last 30 days

2026-10-05 15:31 UTC

Relationship changed

AS25248

upstream to peer

WHOIS

aut-num:        AS204405
as-name:        DurnetCZ
org:            ORG-DS347-RIPE
admin-c:        LR2038-RIPE
tech-c:         LR2038-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-Durnet
created:        2018-03-16T09:54:09Z
last-modified:  2020-11-16T17:52:12Z
source:         RIPE
sponsoring-org: ORG-GSa22-RIPE
% 4 routing policy lines (import/export) not shown

Routing data

Updated 2 h ago

Registry record

Fetched 2 h ago 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/204405

const res = await fetch('https://ip-fd.net/api/v1/asn/204405', {
  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/204405', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/204405');
curl_setopt($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/204405", 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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