AS51409 Sipsynergy Limited

United Kingdom SIPSYNERGY RIPE 12 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

3,072

IPv6 /48 networks

RPKI

12 valid0 no ROA

Peers and downstreams

Holder

AS name: SIPSYNERGY
Description: Sipsynergy Limited
Organisation: Sipsynergy Limited
Registered in: Aylesbury, United Kingdom
Abuse contact: noc@sipsynergy.co.uk
Assigned: 2010-08-16
Registered: 2010-08-17
Record last changed: 2020-09-03 09:33 UTC

178.255.56.0/24 178.255.57.0/24 178.255.58.0/24 178.255.59.0/24 178.255.60.0/24 178.255.61.0/24 178.255.62.0/24 178.255.63.0/24 185.41.224.0/24 185.41.225.0/24 185.41.226.0/24 185.41.227.0/24

AS917	Misaka Network, Inc. MISAKA
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
AS6894	KDDI Europe Ltd KDDI-EUROPE
AS7195	EDGEUNO S.A.S AS7195
AS8218	Zayo Infrastructure France SA NEO-ASN
AS9009	M247 Europe SRL M247
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
AS15412	Flag Telecom UK Limited FLAG-AS
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
AS39351	31173 Services AB ESAB-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
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 C · 70/100

pass	Prefixes covered by valid ROAs 12 of 12 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
pass	More than one upstream 4 upstreams seen in BGP.	10/10
pass	Working abuse contact noc@sipsynergy.co.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
fail	Registry record maintained Last changed 2020-09-03.	0/5

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/51409"><img src="https://ip-fd.net/badge/asn/51409/health.svg" alt="AS51409 network health on IP-FD.net"></a>

Markdown

[![AS51409 network health](https://ip-fd.net/badge/asn/51409/health.svg)](https://ip-fd.net/asn/51409)

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

Routing changes

Last 30 days

2026-10-04 10:50 UTC	Neighbour gone	AS137409	upstream
2026-10-04 10:50 UTC	Neighbour gone	AS37282	upstream
2026-10-04 10:50 UTC	Neighbour gone	AS7575	upstream
2026-10-04 10:50 UTC	Relationship changed	AS9044	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS9009	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS8218	upstream to peer
2026-10-04 10:50 UTC	New neighbour	AS7195	peer
2026-10-04 10:50 UTC	Relationship changed	AS6204	upstream to peer
2026-10-04 10:50 UTC	New neighbour	AS6057	peer
2026-10-04 10:50 UTC	Relationship changed	AS60171	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS5405	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS50304	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS4455	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS41327	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS39351	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS37497	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS37468	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS3741	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS37100	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS35280	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS34927	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS34549	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS34177	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS33891	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS3216	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS3214	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS29075	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS25091	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS215638	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS21215	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS20562	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS15802	upstream to peer
2026-10-04 10:50 UTC	New neighbour	AS15412	peer
2026-10-04 10:50 UTC	Relationship changed	AS14840	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS12779	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS1267	upstream to peer
2026-10-04 10:50 UTC	Relationship changed	AS12552	upstream to peer

WHOIS

aut-num:        AS51409
as-name:        SIPSYNERGY
org:            ORG-SL834-RIPE
remarks:        *** Telehouse DC
remarks:        ***Transit
remarks:        ***LONAP Peers
remarks:        ***LINX Peers
remarks:        *** Dublin DC
remarks:        ***Transit
remarks:        ***INEX Peering
admin-c:        SN8001-RIPE
tech-c:         SN8001-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         mnt-uk-sipsynergy-1
created:        2010-08-17T10:14:36Z
last-modified:  2020-09-03T09:33:37Z
source:         RIPE
% 76 routing policy lines (import/export) not shown

Routing data

Updated 1 days ago

Registry record

Fetched 1 days ago 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/51409

const res = await fetch('https://ip-fd.net/api/v1/asn/51409', {
  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/51409', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/51409');
curl_setopt($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/51409", 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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