AS204064 CEZNET s.r.o.

Czechia CEZNET-AS RIPE 5 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

4,096

IPv6 /48 networks

524,288

RPKI

6 valid0 no ROA

Peers and downstreams

Holder

AS name: CEZNET-AS
Description: CEZNET s.r.o. TAN
Organisation: CEZNET s.r.o.
Abuse contact: dohled@ceznet.cz
Assigned: 2015-09-02
Registered: 2015-09-03
Record last changed: 2025-09-12 10:26 UTC

185.115.180.0/22 185.116.48.0/22 185.116.51.0/24 185.151.172.0/22 185.201.12.0/22

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:        AS204064
as-name:        CEZNET-AS
descr:          CEZNET s.r.o.
descr:          TAN
org:            ORG-TBS13-RIPE
admin-c:        CH13482-RIPE
tech-c:         CH13482-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CEZNET-MNT
created:        2015-09-03T12:31:29Z
last-modified:  2025-09-12T10:26:04Z
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/204064

const res = await fetch('https://ip-fd.net/api/v1/asn/204064', {
  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/204064', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/204064');
curl_setopt($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/204064", 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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