AS51572 Cerulean Solutions Limited

United Kingdom CERULEAN RIPE 1 IPv4 prefix 0 IPv6 prefixes

IPv4 addresses

2,048

IPv6 /48 networks

RPKI

0 valid1 no ROA

Peers and downstreams

Holder

AS name: CERULEAN
Description: Cerulean Solutions Limited
Organisation: Cerulean Solutions Limited
Registered in: Barnet, United Kingdom
Abuse contact: abuse@cerulean.co.uk
Assigned: 2010-09-29
Registered: 2010-09-30
Record last changed: 2025-10-24 17:33 UTC

46.16.80.0/21

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:        AS51572
as-name:        CERULEAN
org:            ORG-CSL8-RIPE
admin-c:        SP9246-RIPE
tech-c:         SP9247-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         CERULEAN-MNTR
created:        2010-09-30T10:13:37Z
last-modified:  2025-10-24T17:33:19Z
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/51572

const res = await fetch('https://ip-fd.net/api/v1/asn/51572', {
  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/51572', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/51572');
curl_setopt($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/51572", 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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