ASN Lookup Tool

SYSN LTD sysn.co.uk GB GB 5 Routes

AS Data

AS209771

AS209771 – SYSN LTD

AS Number 209771
AS Name SYSN
Organization SYSN LTD (org-sl977-ripe)
Country GB
Website sysn.co.uk
Number of IPv4 Routes 0
Number of IPv6 Routes 5
ASN type BUSINESS
Allocation Status ASSIGNED
Registry RIPE
Date Allocated 2018-12-05

ASN Intelligence API for production workflows

Use ASN data for AS209771 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

Access complete peers, upstreams, downstreams, routes, WHOIS, and contact intelligence via our API. Learn more

Get ASN API Key ASN API Docs
Powered by ASN data

IP Ranges

Route # IPs
2a0c:6500:23e::/48 ~1×10²⁴
2a0e:46c6:4ff::/48 ~1×10²⁴
2a0c:6500:23f::/48 ~1×10²⁴
2a0e:46c6:4fe::/48 ~1×10²⁴
2a13:9500:44::/48 ~1×10²⁴

Raw Whois Response

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to 'AS208885 - AS214345'

as-block:       AS208885 - AS214345
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2026-07-13T14:17:33Z
last-modified:  2026-07-13T14:17:33Z
source:         RIPE

% Information related to 'AS209771'

% Abuse contact for 'AS209771' is 'abuse@sysn.co.uk'

aut-num:        AS209771
as-name:        SYSN
org:            ORG-SL977-RIPE
remarks:        For any inquiries use: noc@sysn.co.uk
remarks:        ============ TRANSIT PROVIDERS ============
remarks:        Meerfarbig
import:         from AS-MEER accept ANY
mp-import:      afi ipv6.unicast from AS-MEER accept ANY
export:         to AS-MEER announce AS-SYSN
mp-export:      afi ipv6.unicast to AS-MEER announce AS-SYSN
remarks:        Hurricane Electric
import:         from AS6939 accept ANY
mp-import:      afi ipv6.unicast from AS6939 accept ANY
export:         to AS6939 announce AS-SYSN
mp-export:      afi ipv6.unicast to AS6939 announce AS-SYSN
remarks:        Openfactory
import:         from AS-FREETRANSIT accept ANY
mp-import:      afi ipv6.unicast from AS-FREETRANSIT accept ANY
mp-import:      afi ipv6 from AS41051 accept ANY
export:         to AS-FREETRANSIT announce AS-SYSN
mp-export:      afi ipv6.unicast to AS-FREETRANSIT announce AS-SYSN
mp-export:      afi ipv6 to AS41051 announce AS209771
remarks:        SDRmedia Verwaltungs GmbH
import:         from AS48646 accept ANY
mp-import:      afi ipv6.unicast from AS48646 accept ANY
export:         to AS48646 announce AS-SYSN
mp-export:      afi ipv6.unicast to AS48646 announce AS-SYSN
remarks:        Hop179 OU
import:         from AS11967 accept ANY
mp-import:      afi ipv6.unicast from AS11967 accept ANY
export:         to AS11967 announce AS-SYSN
mp-export:      afi ipv6.unicast to AS11967 announce AS-SYSN
remarks:        ============== IXP ==============
remarks:        LocIX
import:         from AS-LOCIX accept ANY
mp-import:      afi ipv6.unicast from AS-LOCIX accept ANY
export:         to AS-LOCIX announce AS-SYSN
mp-export:      afi ipv6.unicast to AS-LOCIX announce AS-SYSN
remarks:        KleyReX
import:         from AS-KLEYREX-RS1 accept ANY
mp-import:      afi ipv6.unicast from AS-KLEYREX-RS1 accept ANY
export:         to AS-KLEYREX-RS1 announce AS-SYSN
mp-export:      afi ipv6.unicast to AS-KLEYREX-RS1 announce AS-SYSN
remarks:        ========== DIRECT PEERS ==========
remarks:        Cloudflare
import:         from AS13335:AS-CLOUDFLARE accept AS13335:AS-CLOUDFLARE
mp-import:      afi ipv6.unicast from AS13335:AS-CLOUDFLARE accept AS13335:AS-CLOUDFLARE
export:         to AS13335:AS-CLOUDFLARE announce AS-SYSN
mp-export:      afi ipv6.unicast to AS13335:AS-CLOUDFLARE announce AS-SYSN
remarks:        ================================
sponsoring-org: ORG-MM735-RIPE
admin-c:        SL13635-RIPE
tech-c:         SL13635-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SYSN-MNT
created:        2018-12-05T13:35:02Z
last-modified:  2026-09-14T10:07:53Z
source:         RIPE # Filtered

organisation:   ORG-SL977-RIPE
org-name:       SYSN LTD
country:        GB
reg-nr:         12632689
org-type:       OTHER
address:        27 Old Gloucester Street
address:        London WC1N 3AX
address:        United Kingdom
abuse-c:        SLAD7-RIPE
admin-c:        SL13635-RIPE
tech-c:         SL13635-RIPE
mnt-ref:        zeug
mnt-ref:        MEER-MNT
mnt-ref:        MMERKEL-MNT
mnt-ref:        SYSN-MNT
mnt-by:         SYSN-MNT
created:        2020-06-29T15:57:15Z
last-modified:  2026-05-13T06:38:01Z
source:         RIPE # Filtered

person:         SYSN LTD
address:        27 Old Gloucester Street
address:        London WC1N 3AX
address:        United Kingdom
phone:          +49 (231) 58693479
nic-hdl:        SL13635-RIPE
mnt-by:         SYSN-MNT
created:        2020-05-29T14:09:52Z
last-modified:  2025-05-20T17:58:44Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.124.1 (SHETLAND)

Parsed Whois Response

Peers

AS Number Description Country
AS205794 JINZE YANG CN
AS213151 Christian Elsen DE
AS6939 Hurricane Electric LLC US
AS213409 Daniil Koval UA
AS47778 Sunoaki Network LLC US
AS201398 Guwin Universal Services LLC US
AS209267 Velorum B.V. NL
AS60144 3W Infra B.V. NL
AS271253 LINK BRASIL TELECOMUNICACOES LTDA BR
AS21263 TeleData GmbH DE
AS212123 Red Panda Network BE
AS58299 Openfactory GmbH CH
AS51185 MainStreaming SpA IT
AS210667 Adam Goodenough GB
AS56662 Marcin Gondek PL
AS32590 Valve Corporation US
AS24961 WIIT AG DE
AS7768 TEKNET VERI MERKEZI HIZMETLERI A.S. TR
AS8801 Rocket Fibre Ltd GB
AS11967 Hop179 OU EE
AS56584 InterEdge B.V. NL
AS218569 Viktor Nesmeianov RU
AS62000 SERVERD SAS FR
AS34549 meerfarbig GmbH & Co. KG DE
AS24482 SG.GS SG
AS403001 Mirage Global Technologies LLC US
AS34927 iFog GmbH CH
AS25091 IP Max SA CH
AS209859 Florian Martin Esser DE
AS215760 DisPaisy Enterprises IT
AS214022 Joseph Rawlings trading as Virtnet.bond US
AS44620 Netlen Internet Hizmetleri Ltd. Sti. TR
AS8298 IPng Networks GmbH CH
AS28917 Fiord Networks, UAB LT
AS215828 Tizian Maxime Weigt trading as TMW Global Networks DE
AS148971 Keibiin's Holdings Limited GB
AS401753 BIXCE Inc VG
AS51202 NUXOA GmbH DE
AS24940 Hetzner Online GmbH DE
AS215665 Marlon Alkan DE
AS210937 Xiufeng Guo DE
AS57050 DreamServer S.R.L. RO
AS214675 Starlamp Network Project JP
AS41051 FREETRANSIT Project CH
AS48646 SDRmedia Verwaltungs GmbH DE
AS3214 xTom GmbH DE
AS34872 Sarah Rossius trading as Servperso Systems BE
AS202585 bgp.rodeo NL
AS44324 MoeDove LLC US
AS216333 NetDev UG haftungsbeschraenkt DE
AS52112 Gentlent GmbH DE
AS51088 A2B IP B.V. NL
AS8888 xTom Pty Ltd AU
AS42541 Fiberby ApS DK

Upstreams

AS Number Description Country
AS401753 BIXCE Inc VG
AS11967 Hop179 OU EE
AS25091 IP Max SA CH
AS6939 Hurricane Electric LLC US
AS8298 IPng Networks GmbH CH
AS41051 FREETRANSIT Project CH
AS48646 SDRmedia Verwaltungs GmbH DE
AS62000 SERVERD SAS FR
AS34549 meerfarbig GmbH & Co. KG DE

Ready to get started?Get Started with IP Intelligence API Today

Get Started
CTA Illustration

Frequently Asked Questions

ASN AS209771 is an Autonomous System Number used to identify a network for BGP internet routing.
AS209771 is listed under SYSN LTD.
Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.
Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.
WHOIS provides registration and contact context for ASN ownership, administration, and operational reference.
This page previews large ASN datasets. Use See more to load additional rows, and upgrade your plan to view complete peer, route, upstream, and downstream data.