AS51561 AS-ICUK - ICUK Computing Services Limited, GB

AS Number

AS51561

AS Name

AS-ICUK

Org Name

ICUK Computing Services Limited

Country / Region

United Kingdom

Registry

ripe

RegDate

Updated

2025-02-13T13:57:44Z

AS51561 Looking Glass

IPv4Prefixes

IPv6Prefixes

IPv4 NUMs

71,936

IPv6 NUMs(/64)

4,294,967,296

IPv4 Ranges
IPv6 Ranges

CIDR	Description	IP Num
2.56.84.0/22	ICUK Computing Services Limited	1024
5.133.168.0/23	Jibba Jabba Internet Services Ltd	512
5.133.170.0/23	Jibba Jabba Internet Services Ltd	512
5.254.162.0/23	ADSL_MA	512
5.254.164.0/23	ADSL_MA	512
37.235.43.0/24	Shetland Broadband LLP	256
45.93.112.0/23	ICUK Computing Services Limited	512
45.93.112.0/22	ICUK Computing Services Limited	1024
45.145.86.0/23	Fluidity Connect Limited	512
46.33.128.0/24	ICUK Computing Services Limited	256
46.33.128.0/19	ICUK Computing Services Limited	8192
46.33.130.0/24	ICUK Computing Services Limited	256
46.33.156.0/24	AZTECICUK-NET	256
46.102.192.0/24	ICUK Computing Services Limited	256
46.102.192.0/19	ICUK Computing Services Limited	8192
46.102.193.0/24	ICUK Computing Services Limited	256
46.226.120.0/24	Agile ICT Ltd	256
80.95.192.0/20	ICUK Computing Services Limited	4096
80.209.128.0/24	ICUK Computing Services Limited	256
80.209.128.0/19	ICUK Computing Services Limited	8192
80.209.155.0/24	OPIOUS-NET	256
80.209.159.0/24	ICUK Computing Services Limited	256
80.209.160.0/20	ICUK Computing Services Limited	4096
80.209.176.0/21	STICKMAN-NET	2048
80.209.184.0/22	ITATWORK-NET	1024
80.247.216.0/24	CEF (W) SA	256
82.39.142.0/24	VersaTek	256
89.107.24.0/22	CSD Communications Ltd	1024
91.233.33.0/24	Metropolitan Networks UK Ltd	256
138.124.128.0/24	ICUK Computing Services Limited	256
138.124.128.0/20	ICUK Computing Services Limited	4096
138.124.134.0/24	CONNECTUS-NET	256
138.124.135.0/24	INTRA-NET	256
138.124.136.0/24	ICUK Computing Services Limited	256
138.124.137.0/24	ICUK Computing Services Limited	256
138.124.138.0/24	STICKMAN-NET	256
138.124.142.0/24	ZERO7-NET	256
181.215.32.0/24	No Metric Limited	256
185.2.236.0/22	ICUK Computing Services Limited	1024
185.32.55.0/24	David Tomlinson & Paul McAllion trading as Lantec Systems	256
185.35.148.0/24	ICUK Computing Services Limited	256
185.35.148.0/22	ICUK Computing Services Limited	1024
185.35.149.0/24	ICUK Computing Services Limited	256
185.35.150.0/24	ICUK Computing Services Limited	256
185.35.151.0/24	ICUK Computing Services Limited	256
185.132.52.0/24	Mo's Operations GmbH	256
185.137.240.0/24	ICUK Computing Services Limited	256
185.140.16.0/23	ICUK Computing Services Limited	512
185.140.18.0/23	STICKMAN-NET	512
185.145.152.0/24	TOMFLUENT-NET	256
185.145.152.0/22	ICUK Computing Services Limited	1024
185.152.2.0/24	Pine Media Ltd	256
185.201.208.0/22	CTR Communications Limited	1024
185.234.255.0/24	Network 79 Ltd	256
185.243.62.0/24	Multidata Ltd	256
185.243.63.0/24	Multidata Ltd	256
185.253.88.0/24	SDC Hosting and Support Ltd	256
188.211.249.0/24	Select Comms LTD	256
188.240.160.0/24	ICUK Computing Services Limited	256
188.240.160.0/19	ICUK Computing Services Limited	8192
188.240.172.0/24	ICUK Computing Services Limited	256
188.240.173.0/24	ICUK Computing Services Limited	256
188.240.191.0/24	ICUK Computing Services Limited	256
193.161.9.0/24	HP Networks Ltd	256
193.161.10.0/24	HP Networks Ltd	256
193.187.0.0/24	Select Comms LTD	256
205.157.160.0/24	RIPE Network Coordination Centre	256
205.157.160.0/19	ICUK Computing Services Limited	8192
217.22.12.0/24	Wave Mobile Ltd	256

CIDR	Description	IP NUMs(prefix /64)
2a00:b900::/32	ICUK Computing Services Limited	4294967296
2a00:b900:2::/48	ICUK Computing Services Limited	65536

AS	Description	IPv4 NUMs	IPv6 NUMs	IPv4	IPv6
AS57463	NetIX - NetIX Communications JSC, BG	256	0	IPv4	IPv6
AS58511	ANYCAST-GLOBAL-BACKBONE - Anycast Holdings Pty Ltd, AU	22,528	8,589,934,592	IPv4	IPv6
AS7195	EDGEUNO S.A.S, CO	32,000	4,274,061,312	IPv4	IPv6
AS7575	AARNET-AS-AP - Australian Academic and Research Network, AU	1,154,816	90,194,444,288	IPv4	IPv6
AS8218	NEO-ASN - Zayo Infrastructure France SA, FR	47,104	12,884,967,424	IPv4	IPv6
AS34177	CELESTE-AS - Celeste SAS, FR	229,376	98,784,247,808	IPv4	IPv6
AS39120	CONVERGENZE-AS - Convergenze S.p.A., IT	42,496	17,179,869,184	IPv4
AS41327	FIBERTELECOM-AS - Fiber Telecom S.p.A., IT	7,168	68,719,476,736	IPv4	IPv6
AS137409	GSLNETWORKS-AS-AP - GSL Networks Pty LTD, AU	140,800	77,423,378,434	IPv4	IPv6
AS3741	NTT-DATA-Inc - Dimension Data, ZA	2,950,912	137,439,084,544	IPv4
AS12552	GlobalConnect-AS12552 - GlobalConnect AB, SE	564,992	210,454,380,544	IPv4
AS12779	ITGATE - IT.Gate S.p.A., IT	47,104	42,949,869,568	IPv4	IPv6
AS35280	F5 - F5 Networks SARL, FR	55,808	81,604,378,624	IPv4	IPv6
AS37100	SEACOM-AS - SEACOM Limited, MU	1,072,896	12,884,901,888	IPv4	IPv6
AS37721	Virtual-Technologies-Solutions-SA - Virtual Technologies & Solutions, BF	15,872	8,589,934,592	IPv4	IPv6
AS48362	TKSWF-AS - Stadtwerke Feldkirch, AT	7,936	4,294,967,296	IPv4	IPv6
AS61049	EXASCALE - Exascale Ltd, GB	5,120	21,474,836,480	IPv4
AS1031	PEER1-1031 - PEER 1031 LLC, US	256	4,294,967,299	IPv4
AS2914	NTT-DATA-2914 - NTT America, Inc., US	6,499,584	30,065,033,216	IPv4	IPv6
AS3356	LEVEL3 - Level 3 Parent, LLC, US	28,864,512	81,626,398,720	IPv4	IPv6
AS8426	CLARANET-AS - Claranet Limited, GB	904,192	182,536,306,688	IPv4	IPv6
AS9009	M247 - M247 Europe SRL, RO	1,569,536	257,769,079,040	IPv4
AS24482	SGGS-AS-AP - SG.GS, SG	20,992	4,294,967,296	IPv4	IPv6
AS33891	CORE-BACKBONE - Core-Backbone GmbH, DE	0	0	IPv4	IPv6
AS37497	Network-Platforms - Network Platforms (PTY) LTD, ZA	6,400	4,294,967,296	IPv4
AS174	COGENT-174 - Cogent Communications, LLC, US	36,233,472	215,834,689,537	IPv4	IPv6
AS1267	ASN-WINDTRE - WIND TRE S.P.A., IT	7,402,752	2,233,382,993,920	IPv4
AS13335	CLOUDFLARENET - Cloudflare, Inc., US	1,366,016	82,706,169,856	IPv4
AS29075	IELO - IELO-LIAZO SERVICES SAS, FR	31,232	107,374,247,936	IPv4	IPv6
AS53062	GGNET TELECOMUNICACOES LTDA, BR	28,416	4,848,746,496	IPv4
AS61573	IP TELECOM, BR	1,024	4,294,967,296	IPv4	IPv6
AS14840	BR.Digital Telecom, BR	72,960	14,010,613,760	IPv4	IPv6
AS49544	i3Dnet - i3D.net B.V, NL	116,992	356,753,080,320	IPv4	IPv6
AS60602	INOVARE-AS - Inovare-Prim SRL, MD	3,584	4,294,967,296	IPv4	IPv6
AS61568	ALOO TELECOM - FSF TECNOLOGIA SA, BR	12,544	4,295,032,832	IPv4
AS64049	RJIPL-SG - Reliance Jio Infocomm Pte.Ltd, SG	2,048	0	IPv4	IPv6
AS9002	RETN-AS - RETN Limited, GB	26,624	4,831,838,208		IPv6
AS999	CORIX-999 - CORIX NETWORKS, US	70,144	4,295,032,834	IPv4
AS6939	HURRICANE - Hurricane Electric LLC, US	458,496	283,043,982,606,336	IPv4	IPv6
AS52075	WIFIRST - Wifirst S.A.S., FR	132,352	34,359,738,368	IPv4	IPv6
AS1239	COGENT-1239 - Cogent Communications, LLC, US	0	210,729,631,744	IPv4	IPv6
AS5405	INTERDOTLINK - Inter.link GmbH, DE	3,072	34,359,738,368	IPv4	IPv6
AS6204	ZET-NET - INTERKVM HOST SRL, RO	3,840	268,500,999	IPv4
AS13237	LAMBDANET-AS - euNetworks GmbH, DE	570,112	107,374,182,400	IPv4
AS16347	INHERENT - ADISTA SAS, FR	250,880	390,842,023,936	IPv4	IPv6
AS18106	VIEWQWEST-SG-AP - Viewqwest Pte Ltd, SG	53,248	13,153,337,344	IPv4	IPv6
AS25091	IP-Max - IP-Max SA, CH	15,104	68,719,607,808	IPv4	IPv6
AS30844	LIQUID-AS - Liquid Telecommunications Ltd, GB	387,840	38,654,705,664	IPv4	IPv6
AS1000	LINK-AMERICAN - LINK AMERICAN, US	0	0	IPv4
AS9498	BBIL-AP - Bharti Airtel Limited, IN	2,296,576	4,299,358,208	IPv4
AS9930	TTNET-MY - TT DOTCOM SDN BHD, MY	741,888	4,295,098,368	IPv4	IPv6
AS14537	CL-1379-14537 - Continent 8 LLC, US	65,536	12,884,901,888	IPv4	IPv6
AS37468	ANGOLA-CABLES - Angola Cables, AO	9,472	42,949,672,960	IPv4
AS39351	ESAB-AS - 31173 Services AB, SE	14,592	12,886,081,536	IPv4	IPv6

AS	Description	IPv4 NUMs	IPv6 NUMs	IPv4
AS174	COGENT-174 - Cogent Communications, LLC, US	36,233,472	215,834,689,537	IPv4
AS199204	WebMate - Webmate Internet Services Ltd., GB	512	0	IPv4
AS201060	snetterton - SNETTERTON TELECOM LIMITED, GB	1,024	0	IPv4

Peers at this Exchange Point

IX	IPv4	IPv6	Port Speed	Updated
LINX LON2 - London Internet Exchange Ltd.	195.66.238.191	2001:7f8:4:1::c969:1	20 Gbps	2019-05-15 10:29:01
LONAP - London Access Point	5.57.81.134	2001:7f8:17::c969:1	40 Gbps	2026-03-25 23:37:40
LINX LON1 - London Internet Exchange Ltd.	195.66.226.191	2001:7f8:4::c969:1	40 Gbps	2025-01-08 16:15:10

Private Peering Facilities

Name	City	Website	Updated
Telehouse - London (Docklands North)	London	http://www.telehouse.net	2016-03-14 20:39:16
Telehouse - London (Docklands West)	London	http://www.telehouse.net/	2016-08-04 16:18:31
Equinix LD8 - London, Docklands	London	http://www.equinix.com/locations/	2017-07-07 14:27:07

Whois Record

as-block AS51357 - AS51817

as-block	AS51357 - AS51817
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	2025-02-13T13:57:44Z
last-modified	2025-02-13T13:57:44Z
source	RIPE

aut-num AS51561

aut-num	AS51561
as-name	AS-ICUK
org	ORG-ICSL4-RIPE
import	from AS174 accept ANY from AS3356 accept ANY from AS2914 accept ANY
export	to AS174 announce AS-ICUK to AS3356 announce AS-ICUK to AS2914 announce AS-ICUK
admin-c	IRA19-RIPE
tech-c	IRA19-RIPE
status	ASSIGNED
mnt-by	RIPE-NCC-END-MNT ICUK-MNT
created	2010-09-28T13:41:49Z
last-modified	2026-02-24T16:52:22Z
source	RIPE
remarks	cf-validation: 30b6d34f3d64496a9a733f6622439db3

organisation ORG-ICSL4-RIPE

organisation	ORG-ICSL4-RIPE
org-name	ICUK Computing Services Limited
country	GB
reg-nr	04319375
org-type	LIR
address	Suite 5, Metropolitan House, 38-40 High Street CR0 1YB Croydon UNITED KINGDOM
phone	+443450099175
e-mail	noc@icuk.net
admin-c	TO691-RIPE LC6988-RIPE
abuse-c	IRA19-RIPE
mnt-ref	RIPE-NCC-HM-MNT ICUK-MNT
mnt-by	RIPE-NCC-HM-MNT ICUK-MNT
created	2010-07-07T12:52:32Z
last-modified	2026-05-13T07:18:36Z
source	RIPE

role ICUK Ripe Administrator

role	ICUK Ripe Administrator
address	Suite 5, Metropolitan House, 38-40 High Street, Croydon, CR0 1YB
e-mail	noc@icuk.net
admin-c	LC6988-RIPE
tech-c	TO691-RIPE
nic-hdl	IRA19-RIPE
mnt-by	ICUK-MNT
created	2010-09-09T13:50:17Z
last-modified	2016-08-16T09:03:06Z
source	RIPE
abuse-mailbox	abuse@interdns.co.uk

Raw whois response

as-block:       AS51357 - AS51817
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:        2025-02-13T13:57:44Z
last-modified:  2025-02-13T13:57:44Z
source:         RIPE



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:        IRA19-RIPE
tech-c:         IRA19-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

organisation:   ORG-ICSL4-RIPE
org-name:       ICUK Computing Services Limited
country:        GB
reg-nr:         04319375
org-type:       LIR
address:        Suite 5, Metropolitan House, 38-40 High Street
address:        CR0 1YB
address:        Croydon
address:        UNITED KINGDOM
phone:          +443450099175
e-mail:         noc@icuk.net
admin-c:        TO691-RIPE
admin-c:        LC6988-RIPE
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:  2026-05-13T07:18:36Z
source:         RIPE

role:           ICUK Ripe Administrator
address:        Suite 5, Metropolitan House, 38-40 High Street, Croydon, CR0 1YB
e-mail:         noc@icuk.net
admin-c:        LC6988-RIPE
tech-c:         TO691-RIPE
nic-hdl:        IRA19-RIPE
mnt-by:         ICUK-MNT
created:        2010-09-09T13:50:17Z
last-modified:  2016-08-16T09:03:06Z
source:         RIPE
abuse-mailbox:  abuse@interdns.co.uk

AS51561 - AS-ICUK - ICUK Computing Services Limited, GB

AS51561

AS-ICUK

ICUK Computing Services Limited

United Kingdom

Peers at this Exchange Point

Private Peering Facilities

Whois Record

as-block AS51357 - AS51817

aut-num AS51561

organisation ORG-ICSL4-RIPE

role ICUK Ripe Administrator