AS204731 FIBRENEST LIMITED

United Kingdom fibrenest RIPE 8 IPv4 prefixes 19 IPv6 prefixes

IPv4 addresses

7,168

IPv6 /48 networks

65,536

RPKI

27 valid0 no ROA

Peers and downstreams

Holder

AS name: fibrenest
Description: FIBRENEST LIMITED
Organisation: FIBRENEST LIMITED
Registered in: Bury St Edmunds, United Kingdom
Abuse contact: abuse@fibrenest.com
Assigned: 2018-01-17
Registered: 2018-01-18
Record last changed: 2026-02-10 09:24 UTC

154.62.164.0/22 154.62.168.0/22 185.241.224.0/22 185.241.224.0/23 185.241.226.0/23 38.126.80.0/20 38.126.80.0/21 38.126.88.0/21

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 100/100

pass	Prefixes covered by valid ROAs 27 of 27 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 19 IPv6 prefixes.	15/15
pass	More than one upstream 3 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@fibrenest.com is published.	15/15
pass	Publishes a geofeed A geofeed (RFC 8805) tells where the address space is used.	10/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
pass	Registry record maintained Last changed 2026-02-10.	5/5

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/204731"><img src="https://ip-fd.net/badge/asn/204731/health.svg" alt="AS204731 network health on IP-FD.net"></a>

Markdown

[![AS204731 network health](https://ip-fd.net/badge/asn/204731/health.svg)](https://ip-fd.net/asn/204731)

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

Routing changes

Last 30 days

2026-10-05 09:16 UTC	Relationship changed	AS61049	upstream to peer
2026-10-05 09:16 UTC	Relationship changed	AS4455	upstream to peer
2026-10-05 09:16 UTC	New neighbour	AS15830	peer

WHOIS

aut-num:        AS204731
as-name:        fibrenest
org:            ORG-FL427-RIPE
admin-c:        NE2097-RIPE
tech-c:         NE2097-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         lir-uk-fibrenest1-1-MNT
created:        2018-01-18T10:38:17Z
last-modified:  2026-02-10T09:24:12Z
source:         RIPE
% 6 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/204731

const res = await fetch('https://ip-fd.net/api/v1/asn/204731', {
  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/204731', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/204731');
curl_setopt($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/204731", 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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AS4455	IX Reach Ltd BSO
AS13237	euNetworks GmbH LAMBDANET-AS
AS15830	Equinix (EMEA) Acquisition Enterprises B.V. Equinix
AS24482	SG.GS SGGS-AS-AP
AS28792	Public Internet Ltd PUBLIC-INTERNET
AS36236	NetActuate, Inc NETACTUATE
AS48070	DSM (GB) Limited DSM
AS61049	Exascale Ltd EXASCALE