AS25512 CD-Telematika a.s.

Czechia CDT-AS RIPE 11 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

117,760

IPv6 /48 networks

65,536

RPKI

12 valid0 no ROA

Peers and downstreams

Holder

AS name: CDT-AS
Description: The Czech Republic
Organisation: CD-Telematika a.s.
Abuse contact: abuse@cdt.cz
Assigned: 2002-12-16
Registered: 2002-12-17
Record last changed: 2025-07-29 11:30 UTC

131.117.192.0/21 185.134.0.0/22 195.146.96.0/19 212.11.96.0/19 213.235.128.0/18 81.19.32.0/20 82.117.128.0/19 82.202.64.0/18 85.13.64.0/18 85.184.16.0/20 89.203.128.0/17

Routing changes

Last 30 days

2026-10-04 06:51 UTC	Neighbour gone	AS197019	downstream
2026-10-04 06:51 UTC	Neighbour gone	AS16509	downstream
2026-10-04 06:51 UTC	Neighbour gone	AS13335	downstream
2026-10-04 06:51 UTC	Relationship changed	AS8218	upstream to peer
2026-10-04 06:51 UTC	Relationship changed	AS6663	upstream to peer
2026-10-04 06:51 UTC	Relationship changed	AS4455	upstream to peer
2026-10-04 06:51 UTC	Relationship changed	AS33891	upstream to peer
2026-10-04 06:51 UTC	Relationship changed	AS264409	upstream to peer
2026-10-04 06:51 UTC	Relationship changed	AS22356	upstream to peer
2026-10-04 06:51 UTC	Relationship changed	AS21215	upstream to peer
2026-10-04 06:51 UTC	Relationship changed	AS14840	upstream to peer

WHOIS

aut-num:        AS25512
as-name:        CDT-AS
descr:          The Czech Republic
org:            ORG-CTa3-RIPE
remarks:        
remarks:        
remarks:        
remarks:        End of list
admin-c:        CDT-RIPE
tech-c:         CDT-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CDT-MNT
created:        2002-12-17T14:28:40Z
last-modified:  2025-07-29T11:30:12Z
source:         RIPE
% 82 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/25512

const res = await fetch('https://ip-fd.net/api/v1/asn/25512', {
  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/25512', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/25512');
curl_setopt($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/25512", 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))

Works without a key at a lower rate. Get a free key.

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