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	✘	✔
	AS41051	Freetransit Project (Openfactory GmbH)	✘	✔
	AS34549	meerfarbig GmbH & Co. KG	✘	✔

---

Peers

	ASN	Description	IPv4	IPv6
	AS6939	Hurricane Electric LLC	✘	✔
	AS41051	Freetransit Project (Openfactory GmbH)	✘	✔
	AS24482	SG.GS	✘	✔
	AS48646	SDRmedia Verwaltungs GmbH	✘	✔
	AS13335	Cloudflare, Inc.	✘	✔
	AS34927	iFog GmbH	✘	✔
	AS34549	meerfarbig GmbH & Co. KG	✘	✔
	AS50629	LWLcom GmbH	✘	✔
	AS8888	xTom Pty Ltd	✘	✔
	AS52025	ParadoxNetworks Limited	✘	✔
	AS34872	Servperso Systems	✘	✔
	AS31500	Global Network Management Inc	✘	✔
	AS25091	IP-Max SA	✘	✔
	AS3214	xTom GmbH	✘	✔
	AS57344	Telehouse EAD	✘	✔
	AS53062	ALT | GRUPO BRASIL TECPAR	✘	✔
	AS58299	Openfactory GmbH	✘	✔
	AS24940	Hetzner Online GmbH	✘	✔
	AS206499	LOCIX LIMITED	✘	✔
	AS44324	MoeDove LLC	✘	✔
	AS42541	Fiberby ApS	✘	✔
	AS48314	IP-Projects GmbH & Co. KG	✘	✔
	AS34953	RelAix Networks GmbH	✘	✔
	AS51202	NUXOA GmbH	✘	✔
	AS58015	Collin Schneeweiss trading as Tievolu GbR	✘	✔
	AS47536	PathConnect GmbH	✘	✔
	AS215787	TELE90 Telecom GmbH	✘	✔
	AS212635	Jurrian van Iersel	✘	✔
	AS214915	Jan Smyrek	✘	✔
	AS60144	3W Infra B.V.	✘	✔
	AS200462	Lennart Seitz trading as "ETH-Services"	✘	✔
	AS200950	Lyratris Limited	✘	✔
	AS212123	Jori Vanneste	✘	✔
	AS57883	NITAET	✘	✔
	AS51087	Bling Network Ltd	✘	✔
	AS212049	Jonathan Nebel	✘	✔
	AS56382	vServer.site LTD	✘	✔
	AS8298	IPng Networks GmbH	✘	✔
	AS51185	MainStreaming SpA	✘	✔
	AS133504	PAOCLOUD	✘	✔
	AS270735	COMPUTIZE NETWORK TELECOMUNICACOES LTDA	✘	✔
	AS47689	Pudu, LLC	✘	✔
	AS47778	Sunoaki Network LLC	✘	✔
	AS200242	Ember Ana	✘	✔
	AS198016	Michael Kieser	✘	✔
	AS148971	Keibiin's Holdings Limited	✘	✔
	AS204003	Jan-Eric Ortgies	✘	✔
	AS213605	Liu HaoRan	✘	✔
	AS60150	area-7 IT-Services GmbH	✘	✔
	AS200676	Svens Jansons	✘	✔
	AS197477	Moritz Mantel trading as Nerdscave	✘	✔
	AS57050	DreamServer S.R.L.	✘	✔
	AS210951	Josef Miegl	✘	✔
	AS11967	Hop179 LLC	✘	✔
	AS3204	xTom OU	✘	✔
	AS207960	AS207960 Cyfyngedig	✘	✔
	AS207529	LOLINYA TECHNOLOGY LTD	✘	✔
	AS215887	Serhiy Bobrov	✘	✔
	AS210667	Adam Goodenough	✘	✔
	AS213234	Hasan Berkay Cagir	✘	✔
	AS212625	Clement Dubreuil	✘	✔
	AS208814	Tilman Schaefers	✘	✔
	AS12941	intersaar GmbH	✘	✔
	AS207941	JITEN PATHY	✘	✔
	AS203478	Sarah Maedel	✘	✔
	AS214675	Hidenori Matsuo	✘	✔
	AS202224	Giannis Kontos	✘	✔
	AS213576	Robert Weir	✘	✔
	AS208563	CodeReactor Limited	✘	✔
	AS57152	TEKNET VERI MERKEZI HIZMETLERI A.S.	✘	✔
	AS150325	TSUKUDANI NETWORK	✘	✔
	AS60326	0xDEADBEEF LTD	✘	✔
	AS210233	Pixinko SARL	✘	✔
	AS202939	Chimon Technology Ltd	✘	✔
	AS212332	Agustina Sempere Ruiz	✘	✔
	AS215212	Sander Jeurissen	✘	✔
	AS399284	luYs, Inc.	✘	✔
	AS214953	Marcel Rickl	✘	✔
	AS213045	Alex Delporte	✘	✔
	AS34854	Maria Merkel	✘	✔
	AS208059	Hermann Lienstromberg	✘	✔
	AS200455	HOTARU NETWORK LTD.	✘	✔
	AS59900	B-IX Route Servers	✘	✔
	AS205329	Kai-Jung Chen	✘	✔
	AS209823	Enki Multimedia EURL	✘	✔
	AS23347	ZYC Network LLC	✘	✔
	AS206272	Bluvisio GmbH	✘	✔
	AS209768	white2net Srl	✘	✔
	AS59678	SYSTEM36 LLC	✘	✔
	AS211869	Nicholis du Toit	✘	✔
	AS208754	XingRui Li	✘	✔
	AS208753	Marco d'Angelo	✘	✔
	AS199471	Marcel Straub	✘	✔
	AS204254	Marvin Huebel	✘	✔
	AS202729	Jennifer Graul	✘	✔
	AS202427	Ursin Filli	✘	✔
	AS209859	Florian Martin Esser	✘	✔
	AS208768	Constantine Evans	✘	✔
	AS213151	Christian Elsen	✘	✔
	AS209650	Wu Zhiyuan	✘	✔
	AS135103	Alex Neo	✘	✔
	AS207439	Korves.Net USA LLC	✘	✔
	AS208016	The Infrastructure Company GmbH	✘	✔
	AS211635	Stefan Nagel	✘	✔
	AS214930	Alice Wyan Garcia Martin	✘	✔
	AS215216	Barry Ruetten	✘	✔
	AS57797	SysLevel SAS	✘	✔
	AS208236	Adrian Reyer	✘	✔
	AS214646	Mira Jin Heinrich	✘	✔
	AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD	✘	✔
	AS212120	Tom Herbers	✘	✔
	AS56662	Marcin Gondek	✘	✔
	AS216401	Marcel Koeppel	✘	✔
	AS211688	Julius Wolff	✘	✔
	AS32590	Valve Corporation	✘	✔
	AS208434	Martin Jahn	✘	✔
	AS202262	Lucas Ridder trading as LR Techniek	✘	✔
	AS211579	Laura Hausmann	✘	✔
	AS205597	Christian Frost	✘	✔
	AS207662	Katie Chapman	✘	✔
	AS211088	Jan Ahlert	✘	✔
	AS213204	Vanessa Gaube	✘	✔
	AS205088	XIAOKANG WANG	✘	✔
	AS200078	Gao Yijia	✘	✔
	AS216096	Alex Terrats Ciberseguretat SLU	✘	✔
	AS216182	Jorn Dullemans trading as Devcat	✘	✔
	AS209022	Tschajera Limited	✘	✔
	AS208976	FS IT-Systeme GmbH	✘	✔
	AS62246	WJY Limited	✘	✔
	AS59570	Jens Zimperfeld	✘	✔
	AS205794	JINZE YANG	✘	✔
	AS207921	default gateway UG (haftungsbeschraenkt)	✘	✔
	AS44620	Netlen Internet Hizmetleri Ltd. Sti.	✘	✔
	AS214172	DePowered Limited	✘	✔
	AS395878	SERVOSPHERE	✘	✔
	AS52112	Gentlent GmbH	✘	✔
	AS216233	Lucas Neuber	✘	✔
	AS211696	Jae Lo Presti	✘	✔
	AS199918	Wilton Arthur Poth	✘	✔
	AS44354	BROCK VOJKOVIC	✘	✔
	AS51699	NETZFABRIK	✘	✔
	AS215248	Bastiaan Mathijs Brink	✘	✔
	AS209185	Tim Niemeyer	✘	✔
	AS209864	Zhaofeng Li	✘	✔
	AS24013	SB Professional Services	✘	✔
	AS208505	Michael Vieira	✘	✔
	AS59238	Innovative Extremist Co., Ltd.	✘	✔
	AS215207	Henrik Van Tassell	✘	✔
	AS211275	Thomas Rogdakis	✘	✔
	AS205848	Dominik Pohl	✘	✔
	AS215563	Lukas Buttler trading as Luke IT consulting	✘	✔
	AS212164	Jiaxian He	✘	✔
	AS200959	Yaoxuan Chen	✘	✔
	AS30114	Decima LLC	✘	✔
	AS141712	luYs, Inc.	✘	✔
	AS214556	Vexura UG (Haftungsbeschraenkt)	✘	✔
	AS210937	Xiufeng Guo	✘	✔
	AS12817	GeFoekoM e.V.	✘	✔
	AS216369	Jakob Kampichler	✘	✔
	AS34641	Sarah Rossius trading as Servperso Systems	✘	✔
	AS56758	Cr0bar Limited	✘	✔
	AS210660	CaveFox LLC	✘	✔
	AS204934	InnoCrystal Co., Ltd.	✘	✔
	AS212767	Sigfried Seldeslachts	✘	✔
	AS34924	Pankerl - Media, Florian Pankerl	✘	✔
	AS205036	Krzysztof Krych trading as Nakigoto	✘	✔
	AS210833	Florian Bauer	✘	✔
	AS211729	Yiming Zhang	✘	✔
	AS216299	Yang Liuchang	✘	✔
	AS39083	David Froehlich	✘	✔
	AS213449	Jann-Ole Wagenaar	✘	✔
	AS213392	Tan Siewert	✘	✔
	AS211907	Benedikt Daniel Brenner	✘	✔
	AS210076	Beat Joerg	✘	✔
	AS215500	Isabelle Kleinheuer	✘	✔
	AS205094	Tivon Haeberlein	✘	✔
	AS203528	Fabrizzio Jose Petrucci	✘	✔
	AS210426	Liang Zhu	✘	✔
	AS207968	Raphael Peters	✘	✔
	AS207306	Everia Oy	✘	✔
	AS207424	Max Ouwens	✘	✔
	AS213033	Maximilian Koerkemeyer	✘	✔
	AS26431	Happy Telecommunications LLC	✘	✔
	AS211638	David Freyne	✘	✔
	AS58133	Lukas Mergenthaler	✘	✔
	AS46997	Black Mesa Corporation	✘	✔
	AS211671	Peter Hurtenbach	✘	✔
	AS31396	Juliane Holzt	✘	✔
	AS213015	Daniel Neri	✘	✔
	AS200258	Mike Bressem	✘	✔
	AS209533	iFog GmbH - BGPTunnel	✘	✔
	AS213550	Jon Radel	✘	✔
	AS51861	Eric Dorr	✘	✔
	AS199073	ImpleTech Limited	✘	✔
	AS215258	Jugendpresse Hessen e.V.	✘	✔
	AS211498	Calvin Caris	✘	✔
	AS199392	SHIZHENG NIE	✘	✔
	AS214344	Hanxun Xu	✘	✔
	AS209606	Beyond Orbit Ltd.	✘	✔
	AS213216	LuxChan S.A R.L.-S	✘	✔
	AS212044	Sven Heim	✘	✔
	AS204982	Daniel Mostertman	✘	✔
	AS199932	Tianle Shi	✘	✔
	AS203888	USKVM LLC	✘	✔
	AS205121	Oleksandr Kozlenko	✘	✔
	AS211581	Zion Boetzel	✘	✔
	AS151673	Chen Xinyu	✘	✔
	AS208702	Joachim Ernst	✘	✔
	AS197814	Malte Bittner	✘	✔
	AS210577	Tobias Manfred Wegner	✘	✔
	AS212518	Robin Boucquet	✘	✔
	AS215011	Matthieu Gouel	✘	✔
	AS214639	Raul Ghita trading as 'Ghita Telekom'	✘	✔
	AS208549	Christian Ehrig	✘	✔
	AS204017	Laura Fuchs	✘	✔
	AS213376	HERVE ROUSSEAU	✘	✔
	AS139299	FGHRSH STUDIO	✘	✔

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:        Stefan Dunkel
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:        ================================
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:  2025-05-20T17:59:18Z
source:         RIPE
sponsoring-org: ORG-SI241-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
abuse-c:        SLAD7-RIPE
mnt-ref:        zeug
mnt-ref:        MEER-MNT
mnt-ref:        SYSN-MNT
mnt-by:         SYSN-MNT
created:        2020-06-29T15:57:15Z
last-modified:  2024-06-04T23:43:36Z
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: 2026-02-07T03:24:07Z UTC

---

Member of the following AS-SETs

-	Member	ASN Count
RIPE	as41051:as-participants	149
RIPE	as-retn-actual-v6	3911
RIPE	as-sysn	1
RIPE	as-locix	83694
RADB	as-hurricanev6	20348
RIPE	as-stefandunkel	285