185.140.18.0/23

AS51561 · ICUK Computing Services Limited

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Summary

Country	United Kingdom
Domain	icuk.net
ASN	AS51561
Registry	RIPE
ID	UK-ICUK-20160223

WHOIS Details

inetnum:        185.140.16.0 - 185.140.19.255
netname:        UK-ICUK-20160223
country:        GB
org:            ORG-ICSL4-RIPE
admin-c:        LC6988-RIPE
tech-c:         IRA19-RIPE
status:         ALLOCATED PA
mnt-by:         ICUK-MNT
mnt-by:         RIPE-NCC-HM-MNT
created:        2022-10-24T12:04:35Z
last-modified:  2022-10-24T12:04:35Z
source:         RIPE
abuse-email:    abuse@interdns.co.uk
abuse-c:        IRA19-RIPE
abuse-org:      ORG-ICSL4-RIPE

organisation:   ORG-ICSL4-RIPE
org-name:       ICUK Computing Services Limited
country:        GB
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:  2020-12-16T13:11:05Z
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

person:         Leslie Costar
address:        Suite 5, Metropolitan House, 38-40 High Street, Croydon, CR0 1YB
phone:          +44.8450099175
nic-hdl:        LC6988-RIPE
mnt-by:         ICUK-MNT
created:        2010-08-26T10:04:13Z
last-modified:  2016-08-16T09:03:42Z
source:         RIPE

Hosted domains

There are no domains currently hosted on this ASN.

Hosted domains API

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Useful for Cybersecurity

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Pingable IPs

285 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address	ASN	Details
185.140.18.209	AS51561 ICUK Computing Services Limited	`0.37ms` from London, GB
185.140.19.45	AS51561 ICUK Computing Services Limited	`1.65ms` from London, GB

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address	ASN	Details
174.108.43.151	AS11426 Charter Communications Inc	`5.55ms` from Charlotte, US
34.71.63.103	AS396982 Google LLC	`0.12ms` from Council Bluffs, US
135.220.9.247	AS8075 Microsoft Corporation	`0.22ms` from Frankfurt am Main, DE
135.225.97.39	AS8075 Microsoft Corporation	`1.01ms` from Gaevle, SE
185.92.1.103	AS202536 Kadir Kurt trading as Isim Kayit Bilisim	`3.87ms` from Istanbul, TR
208.185.232.151	AS26476 CyberU, Inc.	`0.69ms` from Los Angeles, US
176.128.62.135	AS5410 Bouygues Telecom SA	`3.63ms` from Lyon, FR
84.70.42.215	AS5378 Vodafone Limited	`4.37ms` from Manchester, GB
47.206.176.7	AS5650 Frontier Communications of America, Inc.	`6.04ms` from Miami, US
218.95.61.7	AS4134 CHINANET-BACKBONE	`2.15ms` from Nanchang, CN
82.164.136.199	AS2119 Telenor Norge AS	`10.46ms` from Oslo, NO
38.11.37.55	AS54600 PEG TECH INC	`0.18ms` from San Jose, US
106.14.8.183	AS37963 Hangzhou Alibaba Advertising Co.,Ltd.	`4.02ms` from Shanghai, CN
140.122.113.71	AS1659 Taiwan Academic Network (TANet) Information Center	`1.49ms` from Taipei, TW
111.206.207.247	AS4808 China Unicom Beijing Province Network	`2.62ms` from Beijing, CN
20.122.214.135	AS8075 Microsoft Corporation	`0.42ms` from Boydton, US
41.185.96.39	AS36943 1 GRID (PTY) LTD	`0.72ms` from Cape Town, ZA
107.12.219.23	AS11426 Charter Communications Inc	`19.77ms` from Charlotte, US
31.127.30.183	AS2856 British Telecommunications PLC	`4.41ms` from London, GB
66.27.191.7	AS20001 Charter Communications Inc	`8.92ms` from Los Angeles, US
206.119.75.151	AS8796 FASTNET DATA INC	`0.30ms` from Los Angeles, US
73.91.94.23	AS7922 Comcast Cable Communications, LLC	`8.69ms` from Miami, US
109.80.254.183	AS5610 O2 Czech Republic, a.s.	`6.71ms` from Prague, CZ
112.225.81.103	AS4837 CHINA UNICOM China169 Backbone	`1.92ms` from Qingdao, CN
211.38.162.215	AS4766 Korea Telecom	`1.17ms` from Seoul, KR

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

traceroute -a -n -q1 -f3 185.140.18.193

traceroute to 185.140.18.193 (185.140.18.193): 64 hops max, 52 byte packets

3 [] 5.57.81.134 0.664 ms

4 [AS51561] 185.140.18.193 0.509 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On August 28th 2025

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

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