AS39537 SysGroup plc

United Kingdom HNS RIPE 23 IPv4 prefixes 3 IPv6 prefixes

IPv4 addresses

27,392

IPv6 /48 networks

69,633

RPKI

25 valid1 no ROA

Peers and downstreams

Holder

AS name: HNS
Description: http://www.hns.net
Organisation: SysGroup plc
Registered in: London, United Kingdom
Abuse contact: abuse@sysgroup.com
Assigned: 2006-03-14
Registered: 2006-03-15
Record last changed: 2025-02-16 16:10 UTC

AS1031	PEER 1031 LLC PEER1-1031
AS1267	WIND TRE S.P.A. ASN-WINDTRE
AS1828	Unitas Global UNITAS
AS3170	VeloxServ Communications Ltd VELOXSERV
AS3214	xTom GmbH XTOM
AS3216	PJSC "Vimpelcom" SOVAM-AS
AS3741	Dimension Data
AS4455	IX Reach Ltd BSO
AS5405	Inter.link GmbH INTERDOTLINK
AS6057	Administracion Nacional de Telecomunicaciones AS6057
AS6204	TMRC GROUP SRL ZET-NET
AS6424	EDGOO NETWORKS UNIPESSOAL LDA EDGOO
AS7195	EDGEUNO S.A.S AS7195
AS9044	BSE Software GmbH SOLNET
AS12552	GlobalConnect AB GlobalConnect-AS12552
AS12779	IT.Gate S.p.A. ITGATE
AS12969	Ljosleidarinn ehf Vodafone_Iceland
AS13237	euNetworks GmbH LAMBDANET-AS
AS14630	Invesco Group Services, Inc. INVESCO
AS14840	BR.Digital Telecom AS14840
AS15802	Emirates Integrated Telecommunications Company PJSC DU-AS1
AS16347	ADISTA SAS INHERENT
AS17639	Converge ICT Solutions Inc. CONVERGE-AS
AS18106	Viewqwest Pte Ltd VIEWQWEST-SG-AP
AS20562	Broadband Hosting B.V. OPEN-PEERING-AS
AS21215	UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd UGNI
AS24482	SG.GS SGGS-AS-AP
AS25091	IP-Max SA IP-Max
AS25160	Vorboss Limited VORBOSS
AS28792	Public Internet Ltd PUBLIC-INTERNET
AS29075	IELO-LIAZO SERVICES SAS IELO
AS31742	Sota Solutions Ltd. SOTACONNECT
AS33891	Core-Backbone GmbH CORE-BACKBONE
AS34177	Celeste SAS CELESTE-AS
AS34288	Kantonsschule Zug AS34288
AS34549	meerfarbig GmbH & Co. KG MEER-AS
AS34927	iFog GmbH iFog-GmbH
AS35266	EX Networks Limited EXN-AS
AS35280	F5 Networks SARL F5
AS36236	NetActuate, Inc NETACTUATE
AS37100	SEACOM Limited
AS37468	Angola Cables
AS37497	Network Platforms (PTY) LTD
AS37680	Cool Ideas Service Provider (Pty) Ltd
AS37721	Virtual Technologies & Solutions
AS39122	Blacknight Internet Solutions Limited BLACKNIGHT-AS
AS41327	Fiber Telecom S.p.A. FIBERTELECOM-AS
AS42473	Anexia Cloud Solutions GmbH AS-ANEXIA
AS48070	DSM (GB) Limited DSM
AS48185	team.blue NV team_blue
AS48362	Tkswf TKSWF-AS
AS49544	i3D.net B.V i3Dnet
AS50300	CustodianDC Limited CUSTDC
AS50304	Blix Solutions AS BLIX
AS51185	MainStreaming SpA MAINSTREAMING-AS
AS60171	AFR-IX TELECOM S.A. AFRIX-AS
AS61049	Exascale Ltd EXASCALE
AS61573	IP TELECOM AS61573
AS62167	Tismi BV Tismi
AS198150	SIACOM JSC SIACOM-AS
AS207841	Inferno Communications Ltd INFERNO
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD level86
AS215638	Cilix Limited AS-CILIX-LIMITED
AS263152	MIGO TELECOM AS263152
AS271253	LINK BRASIL TELECOMUNICACOES LTDA AS271253

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 89/100

partly	Prefixes covered by valid ROAs 25 of 26 announced prefixes are RPKI valid, 1 have no ROA.	24/25
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 3 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@sysgroup.com 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 2025-02-16.	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/39537"><img src="https://ip-fd.net/badge/asn/39537/health.svg" alt="AS39537 network health on IP-FD.net"></a>

Markdown

[![AS39537 network health](https://ip-fd.net/badge/asn/39537/health.svg)](https://ip-fd.net/asn/39537)

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

Routing changes

Last 30 days

2026-10-04 21:32 UTC	Neighbour gone	AS39351	upstream
2026-10-04 21:32 UTC	Neighbour gone	AS37282	upstream
2026-10-04 21:32 UTC	Relationship changed	AS9044	upstream to peer
2026-10-04 21:32 UTC	New neighbour	AS7195	peer
2026-10-04 21:32 UTC	New neighbour	AS6204	peer
2026-10-04 21:32 UTC	Relationship changed	AS61049	upstream to peer
2026-10-04 21:32 UTC	New neighbour	AS6057	peer
2026-10-04 21:32 UTC	Relationship changed	AS60171	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS5405	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS50304	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS48362	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS4455	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS41327	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS37497	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS37468	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS3741	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS37100	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS35280	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS34927	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS34549	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS34177	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS33891	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS3216	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS3214	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS29075	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS25091	upstream to peer
2026-10-04 21:32 UTC	New neighbour	AS215638	peer
2026-10-04 21:32 UTC	Relationship changed	AS21215	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS20562	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS15802	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS14840	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS12779	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS1267	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS12552	upstream to peer
2026-10-04 21:32 UTC	Relationship changed	AS1031	upstream to peer
2026-10-04 21:32 UTC	Prefix gone	94.190.245.0/24

WHOIS

aut-num:        AS39537
as-name:        HNS
descr:          http://www.hns.net
org:            ORG-SP277-RIPE
admin-c:        SA43739-RIPE
tech-c:         SA43739-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SYSGROUP-MNT
mnt-by:         MNT-HNS
created:        2006-03-15T11:33:01Z
last-modified:  2025-02-16T16:10:16Z
source:         RIPE
% 30 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/39537

const res = await fetch('https://ip-fd.net/api/v1/asn/39537', {
  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/39537', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/39537');
curl_setopt($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/39537", 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.

AS174
AS3356	Level 3 Parent, LLC LEVEL3
AS6939	Hurricane Electric LLC HURRICANE

AS51491	SysGroup plc SYSGROUP-WALES
AS64415	Ashgoal Limited CONNECTBIT-AS
AS201261	The Watershed Arts Trust Ltd Watershed
AS211124	CGI France SAS CGI-UK-AS