AS8676 PRT Systems Limited

United Kingdom PRTSYSTEMS RIPE 7 IPv4 prefixes 3 IPv6 prefixes

IPv4 addresses

8,704

IPv6 /48 networks

327,680

RPKI

10 valid0 no ROA

Peers and downstreams

Holder

AS name: PRTSYSTEMS
Description: PRT Systems Ltd (Clearhost Transit AS) * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * This AS number is used as the transit provider for all of the ISPs/services operating loosely under the 'Clearhost' umbrella.
Organisation: PRT Systems Limited
Registered in: Haywards Heath, United Kingdom
Abuse contact: ripe-abuse@prtsystems.net.uk
Assigned: 1998-02-17
Registered: 2002-09-16
Record last changed: 2023-10-13 13:13 UTC

185.109.136.0/23 194.11.244.0/23 194.13.108.0/23 194.13.140.0/23 194.13.236.0/23 217.65.160.0/20 31.7.8.0/21

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade A · 90/100

pass	Prefixes covered by valid ROAs 10 of 10 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 3 IPv6 prefixes.	15/15
pass	More than one upstream 4 upstreams seen in BGP.	10/10
pass	Working abuse contact ripe-abuse@prtsystems.net.uk is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
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 2023-10-13.	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/8676"><img src="https://ip-fd.net/badge/asn/8676/health.svg" alt="AS8676 network health on IP-FD.net"></a>

Markdown

[![AS8676 network health](https://ip-fd.net/badge/asn/8676/health.svg)](https://ip-fd.net/asn/8676)

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

Routing changes

Last 30 days

2026-10-04 21:38 UTC	Relationship changed	AS9009	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS8218	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS6204	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS4455	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS39351	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS34927	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS33891	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS264409	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS22356	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS215638	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS20562	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS14840	upstream to peer
2026-10-04 21:38 UTC	Relationship changed	AS137409	upstream to peer

WHOIS

aut-num:        AS8676
as-name:        PRTSYSTEMS
descr:          PRT Systems Ltd (Clearhost Transit AS)
descr:          
descr:          * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
descr:          This AS number is used as the transit provider for all of the
descr:          ISPs/services operating loosely under the 'Clearhost' umbrella.
descr:          These are (currently):
descr:          PRT Systems, UMIS.net, Dico, My Hosting Bubble,
descr:          Neo-Tel and SystemIP.
descr:          * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
descr:          
remarks:        
remarks:        "I take it that the odds are against us and
remarks:        the situation is grim."
remarks:        "You could say that."
remarks:        "You know, if Spock were here he'd say I was
remarks:        an irrational, illogical human being by
remarks:        taking on a mission like that. Sounds like fun!"
remarks:        
admin-c:        PSYS-RIPE
tech-c:         PSYS-RIPE
org:            ORG-PSL1-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         AS8676-MNT
created:        2002-09-16T21:20:30Z
last-modified:  2023-10-13T13:13:48Z
source:         RIPE
% 64 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/8676

const res = await fetch('https://ip-fd.net/api/v1/asn/8676', {
  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/8676', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/8676');
curl_setopt($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/8676", 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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