If you are scraping this block for the prefixes that a AS originates, please use the data dumps in https://bgp.tools/kb/api and cache them

	Prefix	Description
	2a0e:46c6:4ff::/48	SYSN LTD
	2a13:9500:44::/48	SYSN LTD

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✘	✔
	AS34549	meerfarbig GmbH & Co. KG	✘	✔
	AS48646	SDRmedia Verwaltungs GmbH	✘	✔

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Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✘	✔
	AS24482	SG.GS	✘	✔
	AS48646	SDRmedia Verwaltungs GmbH	✘	✔
	AS34549	meerfarbig GmbH & Co. KG	✘	✔
	AS13335	Cloudflare, Inc.	✘	✔
	AS50629	LWLcom GmbH	✘	✔
	AS31500	Global Network Management Inc	✘	✔
	AS8888	xTom Pty Ltd	✘	✔
	AS34872	Servperso Systems	✘	✔
	AS58299	Openfactory GmbH	✘	✔
	AS25091	IP-Max SA	✘	✔
	AS53062	ALT | GRUPO BRASIL TECPAR	✘	✔
	AS3214	xTom GmbH	✘	✔
	AS57344	Telehouse EAD	✘	✔
	AS24940	Hetzner Online GmbH	✘	✔
	AS47536	PathConnect GmbH	✘	✔
	AS206499	LOCIX LIMITED	✘	✔
	AS25394	MK Netzdienste Verwaltungs GmbH trading as MK Netzdie...	✘	✔
	AS42541	Fiberby ApS	✘	✔
	AS8298	IPng Networks GmbH	✘	✔
	AS44324	MoeDove LLC	✘	✔
	AS34953	RelAix Networks GmbH	✘	✔
	AS215172	JIANYUELAB LTD	✘	✔
	AS214915	Jan Smyrek	✘	✔
	AS200462	Lennart Seitz trading as "ETH-Services"	✘	✔
	AS47778	Sunoaki Network LLC	✘	✔
	AS11967	Hop179 OU	✘	✔
	AS59900	B-IX Route Servers	✘	✔
	AS207529	NYANLOLI LTD	✘	✔
	AS204921	zhenyun sun	✘	✔
	AS51087	Bling Network Ltd	✘	✔
	AS200950	Calibour Limited	✘	✔
	AS60144	3W Infra B.V.	✘	✔
	AS58015	Collin Schneeweiss trading as Tievolu GbR	✘	✔
	AS215147	Schleyer-EDV UG	✘	✔
	AS51185	MainStreaming SpA	✘	✔
	AS133504	PAOCLOUD	✘	✔
	AS56382	vServer.site LTD	✘	✔
	AS215787	TELE90 Telecom GmbH	✘	✔
	AS148971	Keibiin's Holdings Limited	✘	✔
	AS60150	area-7 IT-Services GmbH	✘	✔
	AS197477	Moritz Mantel trading as Nerdscave	✘	✔
	AS212123	Jori Vanneste	✘	✔
	AS210951	Josef Miegl	✘	✔
	AS202782	Yaoheng Digital (Shanghai) Technology Co., Ltd.	✘	✔
	AS3204	xTom OU	✘	✔
	AS202939	Chimon Technology Ltd	✘	✔
	AS12941	intersaar GmbH	✘	✔
	AS203478	Sarah Maedel	✘	✔
	AS207941	JITEN PATHY	✘	✔
	AS208814	Tilman Schaefers	✘	✔
	AS212625	Clement Dubreuil	✘	✔
	AS210667	Adam Goodenough	✘	✔
	AS214675	Hidenori Matsuo	✘	✔
	AS213605	Liu HaoRan	✘	✔
	AS208753	Marco d'Angelo	✘	✔
	AS213576	Robert Weir	✘	✔
	AS34854	Maria Merkel trading as Blahaj Studio	✘	✔
	AS150325	TSUKUDANI NETWORK	✘	✔
	AS7768	Nuh Ahmet Firat trading as TEKNET YAZILIM VE BILGISAY...	✘	✔
	AS216299	Yang Liuchang	✘	✔
	AS23347	ZYC Network LLC	✘	✔
	AS399284	luYs, Inc.	✘	✔
	AS215887	Serhiy Bobrov	✘	✔
	AS200455	HOTARU NETWORK LTD.	✘	✔
	AS212332	Agustin Lorenzo Sempere trading as Thinco Telecom	✘	✔
	AS210233	Pixinko SARL	✘	✔
	AS62269	Lukas Schauer	✘	✔
	AS209823	Enki Multimedia EURL	✘	✔
	AS60326	0xDEADBEEF LTD	✘	✔
	AS209859	Florian Martin Esser	✘	✔
	AS202729	Jennifer Graul	✘	✔
	AS209768	white2net Srl	✘	✔
	AS206272	Bluvisio GmbH	✘	✔
	AS204254	Marvin Huebel	✘	✔
	AS56662	Marcin Gondek	✘	✔
	AS214646	Mira Jin Heinrich	✘	✔
	AS208016	The Infrastructure Company GmbH	✘	✔
	AS57797	SysLevel SAS	✘	✔
	AS212120	Tom Herbers	✘	✔
	AS199310	XIN BING XIAN	✘	✔
	AS32590	Valve Corporation	✘	✔
	AS213151	Christian Elsen	✘	✔
	AS208236	Adrian Reyer	✘	✔
	AS57050	DreamServer S.R.L.	✘	✔
	AS211635	Stefan Nagel	✘	✔
	AS207439	Korves.Net USA LLC	✘	✔
	AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD	✘	✔
	AS208754	XingRui Li	✘	✔
	AS211729	Yiming Zhang	✘	✔
	AS214953	Marcel Rickl	✘	✔
	AS395878	SERVOSPHERE	✘	✔
	AS214172	DePowered Limited	✘	✔
	AS204211	Hangzhou Yingyun Network Technology Co., Ltd.	✘	✔
	AS205597	Christian Frost	✘	✔
	AS200078	Gao Yijia	✘	✔
	AS51699	NETZFABRIK	✘	✔
	AS216233	Lucas Neuber	✘	✔
	AS216096	Alex Terrats Ciberseguretat SLU	✘	✔
	AS52112	Gentlent GmbH	✘	✔
	AS62246	WJY Limited	✘	✔
	AS59570	Jens Zimperfeld	✘	✔
	AS33755	Valor Holdings LLC	✘	✔
	AS44620	Netlen Internet Hizmetleri Ltd. Sti.	✘	✔
	AS212049	Jonathan Nebel	✘	✔
	AS205794	JINZE YANG	✘	✔
	AS216182	Jorn Dullemans trading as Devcat	✘	✔
	AS39083	David Froehlich	✘	✔
	AS201445	Zerval Network LLC	✘	✔
	AS34641	Sarah Rossius trading as Servperso Systems	✘	✔
	AS210937	Xiufeng Guo	✘	✔
	AS24013	SB Professional Services	✘	✔
	AS211275	Thomas Rogdakis	✘	✔
	AS204934	InnoCrystal Co., Ltd.	✘	✔
	AS215563	Lukas Buttler trading as Luke IT consulting	✘	✔
	AS34924	Pankerl - Media, Florian Pankerl	✘	✔
	AS141712	luYs, Inc.	✘	✔
	AS30114	Decima LLC	✘	✔
	AS402247	flew llc	✘	✔
	AS215248	Bastiaan Mathijs Brink	✘	✔
	AS200959	Yaoxuan Chen	✘	✔
	AS213467	ProAdmin - Lukasz Piwowarczyk	✘	✔
	AS205036	Krzysztof Krych trading as Nakigoto	✘	✔
	AS212164	Jiaxian He	✘	✔
	AS209864	Zhaofeng Li	✘	✔
	AS213392	Tan Siewert	✘	✔
	AS210660	CaveFox LLC	✘	✔
	AS49933	Alexander Karl	✘	✔
	AS202418	Hendrik George Koren	✘	✔
	AS207424	Mel Ouwens	✘	✔
	AS58133	Lukas Mergenthaler	✘	✔
	AS215500	Isabelle Kleinheuer	✘	✔
	AS213216	LuxChan S.A R.L.-S	✘	✔
	AS203528	Fabrizzio Jose Petrucci	✘	✔
	AS200258	Mike Bressem	✘	✔
	AS213550	Jon Radel	✘	✔
	AS209606	Beyond Orbit Ltd.	✘	✔
	AS203888	USKVM LLC	✘	✔
	AS204017	Laura Fuchs	✘	✔
	AS208549	Christian Ehrig	✘	✔
	AS205121	Oleksandr Kozlenko	✘	✔
	AS151673	Chen Xinyu	✘	✔
	AS207306	Everia Oy	✘	✔
	AS212044	Sven Heim	✘	✔
	AS205094	Tivon Haeberlein	✘	✔
	AS210426	Liang Zhu	✘	✔
	AS211671	Peter Hurtenbach	✘	✔
	AS26431	Happy Telecommunications LLC	✘	✔
	AS139299	FGHRSH STUDIO	✘	✔
	AS209018	SIA Baltijas Pakalpojumi	✘	✔
	AS31396	Juliane Holzt	✘	✔
	AS216081	Paulo Gobbato trading as Gobbato IT Loesungen	✘	✔
	AS210577	Tobias Manfred Wegner	✘	✔
	AS199932	Tianle Shi	✘	✔
	AS46997	Black Mesa Corporation	✘	✔
	AS209857	WGC-Systems UG (haftungsbeschraenkt)	✘	✔
	AS209185	Tim Niemeyer	✘	✔

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
export:         to AS-FREETRANSIT announce AS-SYSN
mp-export:      afi ipv6.unicast to AS-FREETRANSIT announce AS-SYSN
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:        ============== 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:        ================================
sponsoring-org: ORG-MM735-RIPE
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
notify:         noc@sysn.co.uk
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         SYSN-MNT
created:        2018-12-05T13:35:02Z
last-modified:  2026-02-12T12:12:22Z
source:         RIPE
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************


organisation:   ORG-SL977-RIPE
org-name:       SYSN LTD
country:        GB
org-type:       OTHER
address:        Dummy address for ORG-SL977-RIPE
# Email removed, Log into bgp.tools to see whois emails/phone numbers
abuse-c:        SLAD7-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
remarks:        ****************************
remarks:        * THIS OBJECT IS MODIFIED
remarks:        * Please note that all data that is generally regarded as personal
remarks:        * data has been removed from this object.
remarks:        * To view the original object, please query the RIPE Database at:
remarks:        * http://www.ripe.net/whois
remarks:        ****************************

Last Update: 2026-06-05T03:26:26Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RIPE	as-sysn	1
RADB	as-hurricanev6	21128
RIPE	as-stefandunkel	267
RIPE	as41051:as-participants	173
RIPE	as-locix	85710