AS51561 ICUK Computing Services Limited

The website screenshot for https://www.icuk.net/

ICUK Computing Services Limited

AS Number 51561
Website https://www.icuk.net/

Overview
Prefixes
Connectivity
Whois
IX

Registered on: 28 Sep 2010 (15 years old)
Registered to: uk.icuk (ripe)

Network status: Active, Allocated under RIPE

Network type: Eyeball

Prefixes Originated: 63 IPv4, 2 IPv6

Upstreams

AS174 - Cogent Communications, LLC
AS3356 - Lumen (Level 3)
AS2914 - NTT America, Inc.
AS13335 - Cloudflare, Inc.
AS6939 - Hurricane Electric LLC

Rankings

#61 for Estimated Eyeballs in United Kingdom

#48 for Unique Domains in United Kingdom

#123 for Known Peers in United Kingdom

#64 for Originated IPv4 Space in United Kingdom

Tags:

	Prefix	Description
	2.56.84.0/22	ICUK Computing Services Limited
	5.133.168.0/23	Jibba Jabba Internet Services Ltd
	5.133.170.0/23	Jibba Jabba Internet Services Ltd
	5.254.162.0/23	Webmate Internet Services Ltd.
	5.254.164.0/23	Webmate Internet Services Ltd.
	37.235.43.0/24	Shetland Broadband LLP
	45.93.112.0/23	ICUK Computing Services Limited
	45.93.112.0/22	ICUK Computing Services Limited
	45.145.86.0/23	Fluidity Connect Limited
	46.33.128.0/24	Interdsl Network Structure
	46.33.128.0/19	ICUK Computing Services Limited
	46.33.130.0/24	Interdsl
	46.33.156.0/24	ICUK Computing Services Limited
	46.102.192.0/19	ICUK Computing Services Limited
	46.102.192.0/24	Interdsl
	46.102.193.0/24	Interdsl
	46.226.120.0/24	Agile ICT Ltd
	80.95.192.0/20	ICUK Computing Services Limited
	80.209.128.0/24	ICUK Computing Services Limited
	80.209.128.0/19	ICUK Computing Services Limited
	80.209.155.0/24	ICUK Computing Services Limited
	80.209.159.0/24	ICUK Computing Services Limited
	80.209.160.0/20	ICUK Computing Services Limited
	80.209.176.0/21	ICUK Computing Services Limited
	80.209.184.0/22	ICUK Computing Services Limited
	80.247.216.0/24	CEF (W) SA
	82.39.142.0/24	VersaTek
	89.107.24.0/22	CSD Communications Ltd
	91.233.33.0/24	Metropolitan Networks UK Ltd
	138.124.128.0/20	ICUK Computing Services Limited
	138.124.128.0/24	ICUK Computing Services Limited
	138.124.134.0/24	ICUK Computing Services Limited
	138.124.135.0/24	ICUK Computing Services Limited
	138.124.136.0/24	ICUK Computing Services Limited
	138.124.137.0/24	ICUK Computing Services Limited
	138.124.138.0/24	ICUK Computing Services Limited
	138.124.142.0/24	ICUK Computing Services Limited
	181.215.32.0/24	No Metric Limited
	185.2.236.0/22	ICUK Computing Services Limited
	185.32.55.0/24	Lantec Manchester DC 1
	185.132.52.0/24	-
	185.137.240.0/24	ICUK Global CDN Platform
	185.140.16.0/23	ICUK Computing Services Limited
	185.140.18.0/23	ICUK Computing Services Limited
	185.145.152.0/24	ICUK Computing Services Limited
	185.145.152.0/22	ICUK Computing Services Limited
	185.152.2.0/24	-
	185.201.208.0/22	CTR Communications Limited
	185.234.255.0/24	Network 79 Ltd
	185.243.62.0/24	Multidata Ltd
	185.243.63.0/24	Multidata Ltd
	185.253.88.0/24	-
	188.211.249.0/24	Select Comms LTD
	188.240.160.0/24	Interdsl
	188.240.160.0/19	ICUK Computing Services Limited
	188.240.172.0/24	Interdsl
	188.240.173.0/24	Interdsl
	188.240.191.0/24	Interdsl
	193.161.9.0/24	HP Networks Ltd
	193.161.10.0/24	HP Networks Ltd
	193.187.0.0/24	Select Comms LTD
	205.157.160.0/24	ICUK Computing Services Limited
	205.157.160.0/19	ICUK Computing Services Limited
	2a00:b900::/32	ICUK Computing Services Limited
	2a00:b900:2::/48	ICUK Computing Services Limited

Peers: 167

Upstreams: 5

Downstreams: 2 (Cone: 3)

Network Policy

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Chart Display Options

Display links using non straight lines

How are upstreams and downstreams calculated?

Upstreams

ASN	Description	IPv4	IPv6
AS174	Cogent Communications, LLC	✔	✔
AS3356	Lumen (Level 3)	✔	✔
AS2914	NTT America, Inc.	✔	✔
AS13335	Cloudflare, Inc.	✔	✘
AS6939	Hurricane Electric LLC	✘	✔

Peers

ASN	Description	IPv4	IPv6
AS174	Cogent Communications, LLC	✔	✔
AS13335	Cloudflare, Inc.	✔	✘
AS2914	NTT America, Inc.	✔	✔
AS3356	Lumen (Level 3)	✔	✔
AS6939	Hurricane Electric LLC	✔	✔
AS137409	GSL Networks Pty LTD	✔	✔
AS34927	iFog GmbH	✔	✔
AS201060	SNETTERTON TELECOM LIMITED	✔	✘
AS33891	Core-Backbone GmbH	✔	✘
AS61049	Exascale Ltd	✔	✔
AS25091	IP-Max SA	✔	✔
AS20562	Open Peering (Broadband Hosting B.V.)	✔	✔
AS34549	meerfarbig GmbH & Co. KG	✔	✔
AS8218	Zayo Europe	✔	✔
AS216265	ARISTO NETWORKS LTD	✔	✘
AS6204	INTERKVM HOST SRL	✔	✔
AS199204	Webmate Internet Services Ltd.	✔	✘
AS3214	xTom GmbH	✔	✔
AS3170	VeloxServ Communications Ltd	✔	✔
AS7195	EdgeUno	✔	✔
AS14840	BR.DIGITAL	✔	✘
AS52320	V.tal (GlobeNet)	✔	✔
AS52025	ParadoxNetworks Limited	✔	✔
AS49544	i3D.net B.V	✔	✔
AS24940	Hetzner Online GmbH	✔	✔
AS52075	Wifirst S.A.S.	✔	✔
AS200052	Feral.io Ltd	✔	✘
AS12552	GlobalConnect (IP-Only)	✔	✔
AS22356	Durand do Brasil Ltda	✔	✘
AS29075	IELO-LIAZO SERVICES SAS	✔	✔
AS215638	Cilix Limited	✔	✔
AS328366	FIRSTNET TECHNOLOGY SERVICES (PTY) LTD	✔	✘
AS39351	31173 Services AB	✔	✔
AS35280	F5 Networks SARL	✔	✔
AS37100	SEACOM Limited	✔	✔
AS48070	DSM (GB) Limited	✔	✔
AS37497	Network Platforms (PTY) LTD	✔	✘
AS8455	atom86 BV	✔	✔
AS31500	Global Network Management Inc	✔	✘
AS209735	Lagrange Cloud Technologies Limited	✔	✔
AS30844	Liquid Intelligent Technologies	✔	✔
AS16347	ADISTA SAS	✔	✘
AS13237	euNetworks GmbH	✔	✘
AS15412	Flag Telecom UK Limited	✔	✘
AS9498	Bharti Airtel Ltd.	✔	✘
AS399728	P Foundation	✔	✘
AS6206	Netrouting B.V.	✔	✔
AS207841	Inferno Communications Ltd	✔	✔
AS204208	Peravix Group LTD	✔	✔
AS1828	PacketFabric / Unitas Global	✔	✔
AS55850	Mercury NZ Limited	✔	✔
AS16276	OVH SAS	✔	✔
AS199524	Gcore S.A.	✔	✔
AS39122	Blacknight Internet Solutions Limited	✔	✔
AS202076	Fibre Networks (Scotland) Limited	✔	✘
AS249	Packet Star Networks Limited	✔	✘
AS24482	SG.GS	✔	✔
AS50304	Blix Solutions AS	✔	✔
AS48362	Stadtwerke Feldkirch	✔	✔
AS4651	The Communications Authority of Thailand (CAT)	✔	✔
AS6424	EDGOO NETWORKS	✔	✔
AS34087	NTE TELEKOM AS	✔	✘
AS20764	CJSC RASCOM	✔	✘
AS63927	RISE	✔	✘
AS1031	PEER 1031 LLC	✔	✘
AS3216	Vimpelcom PJSC	✔	✘
AS8426	Claranet Limited	✔	✔
AS212396	FyfeWeb Ltd	✔	✔
AS48101	Trooli Ltd.	✔	✔
AS215248	Bastiaan Mathijs Brink	✔	✔
AS212027	PebbleHost Ltd	✔	✔
AS8801	Rocket Fibre Ltd	✔	✔
AS41000	Freethought Internet Limited	✔	✔
AS30690	Kazehana Networks LLC	✔	✔
AS211358	Patrizio Palumbo	✔	✔
AS42831	UK Dedicated Servers Limited	✔	✔
AS34170	Aztelekom LLC	✔	✘
AS53062	ALT \| GRUPO BRASIL TECPAR	✔	✘
AS29017	NTT Data Centers (Gyron)	✔	✘
AS328748	Agile Solutions Provider (PTY) LTD	✔	✘
AS15830	Equinix, Inc.	✔	✘
AS20473	The Constant Company, LLC	✔	✔
AS12779	IT.Gate S.p.A.	✔	✔
AS7575	Australian Academic and Research Network (AARNet)	✔	✔
AS34177	Celeste SAS	✔	✔
AS56665	Proximus Luxembourg S.A.	✔	✔
AS209768	white2net Srl	✔	✘
AS45701	PT Internet Madju Abad Milenindo	✔	✘
AS57344	Telehouse EAD	✔	✘
AS3741	Dimension Data	✔	✘
AS214022	Joseph Rawlings trading as Virtnet.bond	✔	✔
AS34309	Link11 GmbH	✔	✔
AS61231	Neos Networks (SSE PLC)	✔	✔
AS60171	AFR-IX TELECOM S.A.	✔	✔
AS37662	West Indian Ocean Cable Company (WIOCC)	✔	✘
AS25369	Hydra Communications Ltd	✔	✔
AS44684	Mythic Beasts Ltd	✔	✔
AS13213	THG HOSTING LIMITED	✔	✘
AS49600	NEAR IP, S.L.	✔	✔
AS209710	SNRD NETWORKS LIMITED	✔	✔
AS207113	Cyrus Mbitao trading as Wofbit Networks	✔	✔
AS45014	Nuco Technologies Ltd	✔	✔
AS212683	Olilo UK & Ireland Ltd	✔	✔
AS4455	IX Reach Ltd	✔	✘
AS200260	Debugged Ltd	✔	✔
AS215887	Serhiy Bobrov	✔	✔
AS215685	Maik Sussdorf	✔	✔
AS204778	Paul Nicholas Lewis	✔	✔
AS15510	Compuweb Communications Services Limited	✔	✘
AS28792	Public Internet Ltd	✔	✘
AS8330	LONAP Ltd	✔	✔
AS48825	Fast2host - Fast4networks Ltd	✔	✘
AS198690	Fibrecast Ltd.	✔	✘
AS60079	Electromagnetic Field Ltd.	✔	✘
AS212655	YouFibre Limited	✔	✔
AS396993	Soraxus Networks Inc.	✔	✘
AS25160	Vorboss Limited	✔	✔
AS215724	Edgevana, Inc.	✔	✘
AS34979	39D Services LTD	✔	✘
AS201838	Community Fibre Limited	✔	✔
AS41230	ASK4 Limited	✔	✔
AS199081	Lancom Ltd.	✔	✘
AS39175	Connective Online Limited	✔	✘
AS42689	Glide Student & Residential Limited	✔	✘
AS47638	Cadence Networks Ltd	✔	✘
AS13009	Redcentric Solutions Ltd	✔	✘
AS132337	Axclusive	✔	✘
AS56595	Fluency Communications Ltd	✔	✘
AS36236	NetActuate, Inc	✔	✔
AS29049	Delta Telecom Ltd	✔	✘
AS36994	Vodacom	✔	✘
AS271253	LINK BRASIL TELECOMUNICACOES LTDA	✔	✘
AS8932	Ucom CJSC	✔	✔
AS32590	Valve Corporation	✔	✔
AS42295	TBISS Ltd	✔	✔
AS21215	UNITED GROUP NETWORK INFRASTRUCTURE d.o.o. Beograd	✔	✘
AS263152	MIGO TELECOM	✔	✘
AS38158	PT Cyberindo Aditama	✔	✘
AS12713	Ote SA (Hellenic Telecommunications Organisation)	✔	✘
AS41327	Fiber Telecom S.p.A.	✔	✘
AS5713	Telkom SA Ltd.	✔	✘
AS14537	Continent 8 LLC	✔	✘
AS206014	SARL IPSET	✔	✘
AS399486	Virtuo	✔	✘
AS54309	NEGU	✔	✘
AS37680	Cool Ideas Service Provider (Pty) Ltd	✔	✘
AS62217	Vinters IT Ltd	✔	✘
AS263903	INFORBARRA TELECOM	✔	✘
AS37468	Angola Cables	✔	✔
AS28283	Adyl Telecom	✔	✔
AS29119	AIRE NETWORKS DEL MEDITERRANEO SL UNIPERSONAL	✔	✘
AS9050	Orange Romania S.A.	✔	✘
AS786	Jisc Services Limited	✔	✔
AS44324	MoeDove LLC	✘	✔
AS6661	POST Luxembourg	✔	✘
AS15169	Google LLC	✔	✔
AS1239	Sprint Wireline (Cogent)	✔	✔
AS61568	ALOO TELECOM - FSF TECNOLOGIA SA	✔	✘
AS201616	Theo Holroyd	✘	✔
AS5413	Wavenet Limited	✔	✔
AS8359	MTS PJSC	✔	✘
AS35297	Dataline LLC	✘	✔
AS216324	Hyper Group Network Ltd.	✘	✔
AS213241	TECHIT.BE SRL	✘	✔
AS8529	Zain Omantel International FZ-LLC	✘	✔
AS55818	Matrix Cable Internet Exchange	✔	✘
AS212895	Johannes Ernst	✘	✔

Downstreams

	ASN	Description	IPv4	IPv6
	AS201060	SNETTERTON TELECOM LIMITED	✔	✘
	AS199204	Webmate Internet Services Ltd.	✔	✘

aut-num:        AS51561
as-name:        AS-ICUK
org:            ORG-ICSL4-RIPE
import:         from AS174 accept ANY
import:         from AS3356 accept ANY
import:         from AS2914 accept ANY
export:         to AS174 announce AS-ICUK
export:         to AS3356 announce AS-ICUK
export:         to AS2914 announce AS-ICUK
admin-c:        DUMY-RIPE
tech-c:         DUMY-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ICUK-MNT
created:        2010-09-28T13:41:49Z
last-modified:  2026-02-24T16:52:22Z
source:         RIPE
remarks:        cf-validation: 30b6d34f3d64496a9a733f6622439db3
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-ICSL4-RIPE
org-name:       ICUK Computing Services Limited
country:        GB
org-type:       LIR
address:        Dummy address for ORG-ICSL4-RIPE
# Email removed, Log into bgp.tools to see whois emails/phone numbers
abuse-c:        IRA19-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        ICUK-MNT
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         ICUK-MNT
created:        2010-07-07T12:52:32Z
last-modified:  2026-04-29T05:18:23Z
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: 2026-05-06T03:23:55Z UTC

Member of the following AS-SETs

-	Member	ASN Count
RADB	as-kddcustomer2	8206
RIPE	as-lonap-mlp-v6	264
RIPE	as-icuk	11
LEVEL3	as-lumen-customers-asns	10695
RIPE	as-lonap-mlp	284
RADB	as-hurricanev6	20839
ARIN	as13335:as-customers	1588
RADB	as-267613	5617
RADB	as-itxbr1	6592
RIPE	as-lonap-connected	311
RADB	as-nwn-transit	2103
RADB	as-telstra-testing-1	11846
RADB	as-telstra-intl-customers	12353

Name	IPv4	IPv6	Link Speed
LONAP	5.57.81.134	2001:7f8:17::c969:1	40 gbps
LINX LON1	195.66.226.191	2001:7f8:4::c969:1	40 gbps
LINX LON2	195.66.238.191	2001:7f8:4:1::c969:1	20 gbps

View

Upstreams

Rankings

Tags:

Network Policy

Prefixes in selected policy

Upstreams

Peers

Downstreams

Member of the following AS-SETs

Internet Exchange Points