AS43872 Optinet U.K. Limited

United Kingdom OPTINET RIPE 20 IPv4 prefixes 7 IPv6 prefixes

IPv4 addresses

10,496

IPv6 /48 networks

3,670,016

RPKI

27 valid0 no ROA

Peers and downstreams

Holder

AS name: OPTINET
Description: Optinet U.K. Limited
Organisation: Optinet U.K. Limited
Registered in: London, United Kingdom
Abuse contact: abuse@optinet.co.uk
Assigned: 2016-12-19
Registered: 2016-12-20
Record last changed: 2025-11-28 12:30 UTC

Routing changes

Last 30 days

2026-10-04 05:03 UTC	Relationship changed	AS9044	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS8455	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS8220	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS61049	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS60171	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS4455	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS41327	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS39351	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS37497	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS37468	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS34927	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS34549	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS34177	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS33891	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS30844	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS30781	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS29169	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS286	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS25091	upstream to peer
2026-10-04 05:03 UTC	New neighbour	AS215638	peer
2026-10-04 05:03 UTC	Relationship changed	AS20562	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS15802	upstream to peer
2026-10-04 05:03 UTC	Relationship changed	AS12552	upstream to peer

WHOIS

aut-num:        AS43872
as-name:        OPTINET
org:            ORG-OUL4-RIPE
admin-c:        SP16055-RIPE
tech-c:         NO1784-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         uk-optinet-1-mnt
created:        2016-12-20T14:17:07Z
last-modified:  2025-11-28T12:30:51Z
source:         RIPE
% 8 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/43872

const res = await fetch('https://ip-fd.net/api/v1/asn/43872', {
  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/43872', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/43872');
curl_setopt($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/43872", 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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