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	Prefix	Description
	185.75.31.0/24	Syntura Group Limited
	2001:678:418::/48	Syntura Group Limited

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Network Policy

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How are upstreams and downstreams calculated?

Upstreams

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✔
	AS2914	NTT America, Inc.	✔	✘

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Peers

	ASN	Description	IPv4	IPv6
	AS174	Cogent Communications, LLC	✔	✔
	AS6939	Hurricane Electric LLC	✔	✔
	AS2914	NTT America, Inc.	✔	✘
	AS5405	Inter.link GmbH	✔	✘
	AS137409	GSL Networks Pty LTD	✔	✘
	AS33891	Core-Backbone GmbH	✔	✘
	AS25091	IP-Max SA	✔	✘
	AS34927	iFog GmbH	✔	✘
	AS20562	Open Peering (Broadband Hosting B.V.)	✔	✘
	AS61049	Exascale Ltd	✔	✘
	AS6204	INTERKVM HOST SRL	✔	✘
	AS7195	EdgeUno	✔	✘
	AS52320	V.tal (GlobeNet)	✔	✘
	AS3170	VeloxServ Communications Ltd	✔	✘
	AS14840	BR.DIGITAL	✔	✘
	AS215638	Cilix Limited	✔	✘
	AS37468	Angola Cables	✔	✘
	AS12552	GlobalConnect (IP-Only)	✔	✘
	AS49544	i3D.net B.V	✔	✘
	AS31500	Global Network Management Inc	✔	✘
	AS328366	FIRSTNET TECHNOLOGY SERVICES (PTY) LTD	✔	✘
	AS13237	euNetworks GmbH	✔	✘
	AS52075	Wifirst S.A.S.	✔	✘
	AS48070	DSM (GB) Limited	✔	✘
	AS35280	F5 Networks SARL	✔	✘
	AS52025	ParadoxNetworks Limited	✔	✘
	AS6206	Netrouting B.V.	✔	✘
	AS39351	31173 Services AB	✔	✘
	AS29075	IELO-LIAZO SERVICES SAS	✔	✘
	AS37497	Network Platforms (PTY) LTD	✔	✘
	AS37100	SEACOM Limited	✔	✘
	AS207841	Inferno Communications Ltd	✔	✘
	AS16347	ADISTA SAS	✔	✘
	AS9498	Bharti Airtel Ltd.	✔	✘
	AS6424	EDGOO NETWORKS	✔	✘
	AS55850	Mercury NZ Limited	✔	✘
	AS39122	Blacknight Internet Solutions Limited	✔	✘
	AS30844	Liquid Intelligent Technologies	✔	✘
	AS42831	UK Dedicated Servers Limited	✔	✘
	AS12779	IT.Gate S.p.A.	✔	✘
	AS34177	Celeste SAS	✔	✘
	AS48362	Stadtwerke Feldkirch	✔	✘
	AS49600	NEAR IP, S.L.	✔	✘
	AS4651	The Communications Authority of Thailand (CAT)	✔	✘
	AS50304	Blix Solutions AS	✔	✘
	AS1828	PacketFabric / Unitas Global	✔	✘
	AS1031	PEER 1031 LLC	✔	✘
	AS63927	RISE	✔	✘
	AS202076	Fibre Networks (Scotland) Limited	✔	✘
	AS6661	POST Luxembourg	✔	✘
	AS212027	PebbleHost Ltd	✔	✘
	AS399728	P Foundation	✔	✘
	AS45701	PT Internet Madju Abad Milenindo	✔	✘
	AS53062	ALT | GRUPO BRASIL TECPAR	✔	✘
	AS20473	The Constant Company, LLC	✔	✘
	AS57344	Telehouse EAD	✔	✘
	AS56665	Proximus Luxembourg S.A.	✔	✘
	AS24482	SG.GS	✔	✘
	AS328748	Agile Solutions Provider (PTY) LTD	✔	✘
	AS64049	Reliance Jio Infocomm Pte. Ltd.	✔	✘
	AS29017	NTT Data Centers (Gyron)	✔	✘
	AS44684	Mythic Beasts Ltd	✔	✘
	AS263152	MIGO TELECOM	✔	✘
	AS61231	Neos Networks (SSE PLC)	✔	✘
	AS37662	West Indian Ocean Cable Company (WIOCC)	✔	✘
	AS34170	Aztelekom LLC	✔	✘
	AS215248	Bastiaan Mathijs Brink	✔	✘
	AS34309	Link11 GmbH	✔	✘
	AS41000	Freethought Internet Limited	✔	✘
	AS3741	Dimension Data	✔	✘
	AS15830	Equinix, Inc.	✔	✘
	AS8801	Rocket Fibre Ltd	✔	✘
	AS60171	AFR-IX TELECOM S.A.	✔	✘
	AS16637	MTN SA (Bayobab)	✔	✘
	AS212396	FyfeWeb Ltd	✔	✘
	AS41327	Fiber Telecom S.p.A.	✔	✘
	AS4455	IX Reach Ltd	✔	✘
	AS48101	Trooli Ltd.	✔	✘
	AS212683	Olilo UK & Ireland Ltd	✔	✘
	AS13009	Redcentric Solutions Ltd	✔	✘
	AS204208	Peravix Group LTD	✔	✘
	AS25160	Vorboss Limited	✔	✘
	AS54309	NEGU	✔	✘
	AS835	GoCodeIT Inc	✔	✘
	AS203416	I.T Communications Limited	✔	✘
	AS28283	Adyl Telecom	✔	✘
	AS6057	Administracion Nacional de Telecomunicaciones	✔	✘
	AS36994	Vodacom	✔	✘
	AS42689	Glide Student & Residential Limited	✔	✘
	AS14537	Continent 8 LLC	✔	✘
	AS62217	Vinters IT Ltd	✔	✘
	AS209768	white2net Srl	✔	✘
	AS263903	INFORBARRA TELECOM	✔	✘
	AS37680	Cool Ideas Service Provider (Pty) Ltd	✔	✘
	AS207113	Cyrus Mbitao trading as Wofbit Networks	✔	✘
	AS198690	Fibrecast Ltd.	✔	✘
	AS28792	Public Internet Ltd	✔	✘
	AS206014	SARL IPSET	✔	✘
	AS32590	Valve Corporation	✔	✘
	AS271253	LINK BRASIL TELECOMUNICACOES LTDA	✔	✘
	AS8932	Ucom CJSC	✔	✘
	AS47638	Cadence Networks Ltd	✔	✘
	AS3214	xTom GmbH	✔	✘
	AS42295	TBISS Ltd	✔	✘
	AS132337	Axclusive	✔	✘
	AS39175	Connective Online Limited	✔	✘
	AS199081	Lancom Ltd.	✔	✘
	AS38158	PT Cyberindo Aditama	✔	✘
	AS36236	NetActuate, Inc	✔	✘
	AS1239	Sprint Wireline (Cogent)	✔	✘
	AS212655	YouFibre Limited	✔	✘
	AS399486	Virtuo	✔	✘
	AS29119	AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL	✔	✘
	AS25369	Hydra Communications Ltd	✔	✘
	AS15510	Compuweb Communications Services Limited	✔	✘
	AS41230	ASK4 Limited	✔	✘
	AS201838	Community Fibre Limited	✔	✘
	AS56595	Commsworld Ltd	✔	✘
	AS12713	Ote SA (Hellenic Telecommunications Organisation)	✔	✘
	AS5713	Telkom SA Ltd.	✔	✘
	AS48825	Fast2host - Fast4networks Ltd	✔	✘

aut-num:        AS20679
org:            ORG-HOL1-RIPE
as-name:        HSO
descr:          Office Network
remarks:
remarks:        +--------------------------------+
remarks:        | Upstream transit |
remarks:        +--------------------------------+
remarks:
import:         from AS39326 accept ANY
export:         to AS39326 announce AS20679
import:         from AS8468 accept ANY
export:         to AS8468 announce AS20679
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
notify:         hostmaster@hso.uk.com
mnt-by:         HSO-MNT
created:        2002-09-18T11:43:34Z
last-modified:  2016-04-14T09:10:45Z
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-HOL1-RIPE
org-name:       Syntura Group Limited
country:        GB
org-type:       LIR
address:        Dummy address for ORG-HOL1-RIPE
# Email removed, Log into bgp.tools to see whois emails/phone numbers
abuse-c:        AR17693-RIPE
mnt-ref:        HSO-MNT
mnt-ref:        RIPE-NCC-HM-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         HSO-MNT
created:        2004-04-17T12:15:38Z
last-modified:  2026-05-13T07:31:10Z
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: 2026-06-09T03:23:44Z UTC

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Member of the following AS-SETs

-	Member
RIPE	as-bsve:as-linx-peers-2
LEVEL3	as-level3-origins-eu
RIPE	as-hso-2
RIPE	as-bsve:as-linx-peers-1
LEVEL3	as-level3-policy-ases
RIPE	as-hso
RIPE	as-mfnx
RIPE	as-hso-net2
RIPE	as12703:as-peers-v6
NTTCOM	as2914:as-europe-v6
LEVEL3	as-level3-customers-eu
RIPE	as-plusnetuk:as-linx-peers-pri
RIPE	as-manda-linx-peers-v6
ALTDB	as51202:as-all
LEVEL3	as-level3-transits
RIPE	as-manda-linx-peers-v4
RIPE	as12703:as-peers
NTTCOM	as2914:as-europe
RIPE	as-plusnetuk:as-linx-peers-sec
RADB	as-tmnet-peers
RIPE	as-liquid-linxpeers
RIPE	as-atrato:as-peers