AS39551 Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya

Spain GENCAT-AS RIPE 76 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

32,768

IPv6 /48 networks

RPKI

6 valid70 no ROA

Peers and downstreams

Holder

AS name: GENCAT-AS
Description: Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya
Organisation: Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya
Registered in: L'Hospitalet de Llobregat, Spain
Abuse contact: cert@ciberseguretat.cat
Assigned: 2006-03-15
Registered: 2006-03-16
Record last changed: 2026-03-30 14:35 UTC

83.247.128.0/24 83.247.129.0/24 83.247.130.0/24 83.247.131.0/24 83.247.132.0/24 83.247.133.0/24 83.247.134.0/24 83.247.135.0/24 83.247.136.0/24 83.247.137.0/24 83.247.138.0/24 83.247.139.0/24 83.247.140.0/24 83.247.141.0/24 83.247.142.0/24 83.247.143.0/24 83.247.144.0/24 83.247.145.0/24 83.247.146.0/24 83.247.147.0/24 83.247.148.0/24 83.247.149.0/24 83.247.150.0/24 83.247.151.0/24 83.247.152.0/24 83.247.153.0/24 83.247.154.0/24 83.247.155.0/24 83.247.156.0/24 83.247.157.0/24 83.247.158.0/24 83.247.159.0/24 83.247.160.0/24 83.247.161.0/24 83.247.162.0/24 83.247.163.0/24 83.247.164.0/24 83.247.165.0/24 83.247.166.0/24 83.247.167.0/24 83.247.168.0/24 83.247.169.0/24 83.247.170.0/24 83.247.171.0/24 83.247.172.0/24 83.247.173.0/24 83.247.174.0/24 83.247.175.0/24 83.247.176.0/24 83.247.177.0/24 83.247.178.0/24 83.247.179.0/24 83.247.180.0/24 83.247.181.0/24 83.247.182.0/24 83.247.183.0/24 83.247.184.0/24 83.247.185.0/24 83.247.186.0/24 83.247.187.0/24 83.247.188.0/24 83.247.189.0/24 83.247.190.0/24 83.247.191.0/24 83.247.192.0/24 83.247.193.0/24 83.247.194.0/24 83.247.195.0/24 83.247.196.0/24 83.247.197.0/24 83.247.198.0/24 83.247.199.0/24 83.247.200.0/21 83.247.200.0/24 83.247.208.0/20 83.247.224.0/19

Routing changes

Last 30 days

2026-10-04 04:44 UTC

Relationship changed

AS8220

upstream to peer

WHOIS

aut-num:        AS39551
as-name:        GENCAT-AS
org:            ORG-CTiT1-RIPE
admin-c:        AXC6-RIPE
tech-c:         AXC6-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         GENCAT-MNT
created:        2006-03-16T15:30:16Z
last-modified:  2026-03-30T14:35:53Z
source:         RIPE
% 16 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/39551

const res = await fetch('https://ip-fd.net/api/v1/asn/39551', {
  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/39551', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/39551');
curl_setopt($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/39551", 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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AS21193	Centre de Telecomunicacions i Tecnologies de la Informacio de la Generalitat de Catalunya XARXA-AS
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AS8220	COLT Technology Services Group Limited COLT
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