AS43872 Optinet U.K. Limited details

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AS43872 – Optinet U.K. Limited

Field	Value
Country	United Kingdom
Website	optinet.co.uk
Hosted domains	17
Number of IPv4	6,400
Number of IPv6	1,267,650,600,228,229,401,496,703,205,376
ASN type	ISP
Registry	ripe
Allocated	9 years ago on Dec 20, 2016
Updated	2 years ago on Sep 25, 2023

Netblock	Company	Num of IPs
185.183.20.0/22	Optinet U.K. Limited	1,024
185.253.176.0/22	Optinet U.K. Limited	1,024
5.253.252.0/22	Optinet U.K. Limited	1,024
176.101.169.0/24	Optinet U.K. Limited	256
185.187.61.0/24	Optinet U.K. Limited	256
193.105.189.0/24	Optinet U.K. Limited	256
193.247.101.0/24	Optinet U.K. Limited	256
193.247.103.0/24	Optinet U.K. Limited	256
193.247.165.0/24	Optinet U.K. Limited	256
193.247.94.0/24	Optinet U.K. Limited	256
195.234.28.0/24	Optinet U.K. Limited	256
217.198.183.0/24	Optinet U.K. Limited	256
45.136.108.0/24	Optinet U.K. Limited	256
84.38.246.0/24	Harrods International Ltd	256
91.201.105.0/24	Guaranty Trust Bank (UK) Limited	256
92.118.111.0/24	Optinet U.K. Limited	256

Netblock	Company
2a0b:180::/29	Optinet U.K. Limited
2a10:cac0::/29	Optinet U.K. Limited

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WHOIS Details

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                                                ASHandle:       AS43872
                                                OrgID:          AS43872
                                                ASName:         AS43872
                                                ASNumber:       AS43872
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA

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Hosted Domains

There are 17 domain names hosted across 11 IP addresses on this ASN.

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IP Address	Domain	Domains on this IP
185.253.177.226	██████████	5
185.183.22.225	██████████	3
193.105.189.98	██████████	1
185.187.61.169	██████████	1
193.105.189.235	██████████	1
92.118.111.139	██████████	1
92.118.111.12	██████████	1
5.253.255.58	██████████	1
185.183.22.26	██████████	1
185.183.20.100	██████████	1

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Peers

There are 76 peers for this ASN.

Peers	Name
AS1031	PEER 1031 LLC
AS12552	GlobalConnect AB
AS1267	WIND TRE S.P.A.
AS12969	Vodafone Iceland
AS132337	Axclusive
AS13237	euNetworks GmbH
AS137409	GSL Networks Pty LTD
AS14537	Continent 8 LLC
AS14630	Invesco Group Services, Inc.
AS14840	BR.Digital Provider
AS15802	Emirates Integrated Telecommunications Company PJSC
AS16552	Tiggee LLC
AS174	Cogent Communications
AS18106	Viewqwest Pte Ltd
AS1828	Unitas Global
AS198150	SIACOM JSC
AS20562	Broadband Hosting B.V.
AS20764	CJSC RASCOM
AS207841	Inferno Communications Ltd
AS212483	LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS24482	SG.GS
AS25091	IP-Max SA
AS25160	Vorboss Limited
AS286	GTT Communications Inc.
AS28792	Public Internet Ltd
AS29169	GANDI SAS
AS30781	Free Pro SAS
AS30844	Liquid Telecommunications Ltd
AS3170	VeloxServ Communications Ltd
AS31742	Sotaconnect Network
AS3214	xTom GmbH
AS3257	GTT Communications Inc.
AS33891	Core-Backbone GmbH
AS34177	CELESTE SAS
AS34224	Neterra Ltd.
AS34288	Kantonsschule Zug
AS34549	meerfarbig GmbH & Co. KG
AS34927	iFog GmbH
AS35266	EX Networks Limited
AS36236	NetActuate, Inc
AS37100	SEACOM Limited
AS3741	Dimension Data
AS37468	Angola Cables
AS37497	Network Platforms (PTY) LTD
AS37721	Virtual Technologies & Solutions
AS38880	Micron21 Datacentre Pty Ltd
AS39120	Convergenze S.p.A.
AS39122	Blacknight Internet Solutions Limited
AS39351	31173 Services AB
AS398465	Rackdog, LLC
AS41811	CONVERGENCE (GROUP NETWORKS) LIMITED
AS4455	IX Reach Ltd
AS45437	Real World - The Core
AS47957	Worldline IGSA SA
AS48070	DSM (GB) Limited
AS48362	Stadtwerke Feldkirch
AS49544	i3D.net B.V
AS51185	MainStreaming SpA
AS52320	GlobeNet Cabos Submarinos Colombia, S.A.S.
AS55850	Mercury NZ Limited
AS5713	Telkom SA Ltd.
AS57463	NetIX Communications JSC
AS58511	Anycast Global Backbone
AS60171	AFR-IX TELECOM S.A.
AS61049	Exascale Limited
AS62167	Tismi BV
AS6233	xTom
AS63927	RISE
AS6424	EDGOO NETWORKS
AS6939	Hurricane Electric LLC
AS8220	COLT Technology Services Group Limited
AS8359	MTS PJSC
AS8455	atom86 BV
AS8966	EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
AS9044	BSE Software GmbH
AS9304	HGC Global Communications Limited

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Upstreams

There are 2 upstreams for this ASN.

upstreams	Name
AS174	Cogent Communications
AS3257	GTT Communications Inc.

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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address	ASN	Details
185.187.61.225	AS43872 Optinet U.K. Limited	`0.29ms` from London, GB
2a0b:180:dc00:eb01::216	AS43872 Optinet U.K. Limited	`0.96ms` from London, GB
185.253.177.51	AS43872 Optinet U.K. Limited	`0.42ms` from London, GB
193.247.101.125	AS43872 Optinet U.K. Limited	`0.24ms` from London, GB
195.234.28.224	AS43872 Optinet U.K. Limited	`0.30ms` from London, GB
193.247.165.48	AS43872 Optinet U.K. Limited	`0.59ms` from London, GB
91.201.105.1	AS43872 Optinet U.K. Limited	`0.56ms` from London, GB
92.118.111.68	AS43872 Optinet U.K. Limited	`0.57ms` from London, GB
2a0b:180:dc02:eb01::54	AS43872 Optinet U.K. Limited	`0.86ms` from London, GB
5.253.253.138	AS43872 Optinet U.K. Limited	`0.40ms` from London, GB
5.253.252.164	AS43872 Optinet U.K. Limited	`0.40ms` from London, GB
217.198.183.149	AS43872 Optinet U.K. Limited	`0.62ms` from London, GB
45.136.108.93	AS43872 Optinet U.K. Limited	`0.29ms` from London, GB
5.253.255.193	AS43872 Optinet U.K. Limited	`0.26ms` from London, GB
2a0b:180::40	AS43872 Optinet U.K. Limited	`0.46ms` from London, GB
185.183.20.20	AS43872 Optinet U.K. Limited	`0.17ms` from London, GB
2a0b:180:dc01:eb01::51	AS43872 Optinet U.K. Limited	`0.91ms` from London, GB
5.253.254.21	AS43872 Optinet U.K. Limited	`0.27ms` from London, GB
185.183.21.92	AS43872 Optinet U.K. Limited	`0.23ms` from London, GB
185.253.179.61	AS43872 Optinet U.K. Limited	`0.37ms` from London, GB
185.183.22.50	AS43872 Optinet U.K. Limited	`0.22ms` from London, GB
176.101.169.204	AS43872 Optinet U.K. Limited	`0.41ms` from London, GB
193.105.189.204	AS43872 Optinet U.K. Limited	`0.31ms` from London, GB
185.253.178.1	AS43872 Optinet U.K. Limited	`0.25ms` from London, GB
185.183.23.110	AS43872 Optinet U.K. Limited	`0.24ms` 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
140.179.88.160	AS55960 Beijing Guanghuan Xinwang Digital	`3.74ms` from Beijing, CN
144.130.98.0	AS1221 Telstra Limited	`1.76ms` from Brisbane, AU
84.137.192.144	AS3320 Deutsche Telekom AG	`5.07ms` from Frankfurt am Main, DE
31.220.126.0	AS15817 Mittwald CM Service GmbH und Co. KG	`3.22ms` from Hamburg, DE
162.127.7.16	AS11714 Network Nebraska	`5.97ms` from Kansas City, US
180.150.17.240	AS4764 Aussie Broadband	`0.15ms` from Melbourne, AU
78.202.245.32	AS12322 Free SAS	`1.17ms` from Paris, FR
75.164.213.240	AS209 CenturyLink Communications, LLC	`1.17ms` from Portland, US
178.130.38.16	AS12389 PJSC Rostelecom	`1.37ms` from Saint Petersburg, RU
24.18.121.64	AS7922 Comcast Cable Communications, LLC	`7.16ms` from Seattle, US
101.224.214.208	AS4812 China Telecom (Group)	`5.31ms` from Shanghai, CN
40.79.187.16	AS8075 Microsoft Corporation	`0.86ms` from Tokyo, JP
23.35.211.128	AS16625 Akamai Technologies, Inc.	`0.15ms` from Vienna, AT
20.56.76.80	AS8075 Microsoft Corporation	`1.25ms` from Amsterdam, NL
146.135.11.160	AS19901 Brightspeed	`6.70ms` from Ashburn, US
27.12.88.80	AS4837 CHINA UNICOM China169 Backbone	`4.53ms` from Chongqing, CN
150.239.149.224	AS36351 IBM Cloud	`0.90ms` from Dallas, US
97.176.76.128	AS6167 Verizon Business	`13.29ms` from Dallas, US
89.217.118.128	AS6730 Sunrise GmbH	`2.58ms` from Geneve, CH
84.131.244.48	AS3320 Deutsche Telekom AG	`1.55ms` from Hamburg, DE
125.117.133.112	AS4134 CHINANET-BACKBONE	`8.50ms` from Nanchang, CN
24.184.242.112	AS6128 Cablevision Systems Corp.	`8.97ms` from New York City, US
67.81.203.16	AS6128 Cablevision Systems Corp.	`9.20ms` from New York City, US
146.115.209.192	AS6079 RCN	`7.32ms` from Philadelphia, US
45.139.193.240	AS6233 xTom	`0.12ms` from San Jose, US

Traceroute

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

traceroute -a -n -q1 -f4 195.234.28.238

traceroute to 195.234.28.238 (195.234.28.238): 64 hops max, 52 byte packets

4 [] 195.66.237.113 0.862 ms

5 [AS43872] 185.183.20.51 0.627 ms

6 [AS43872] 195.234.28.238 0.476 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On August 28th 2025

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What is an ASN?

Autonomous System Numbers (ASNs) are assigned to entities such as Internet Service Providers and other large organizations that control blocks of IP addresses. This network page, and the organization field that's shown on the main IP address information page and also returned in the geolocation API are based on the ASN.

The ASN details will often correspond to the IP address owner, but for smaller organizations it may be that organization's parent, or their ISP. Find out more about AS43872 at robtex.

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