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	9 days ago on Sep 12, 2025

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
185.183.22.26	██████████	1
5.253.255.58	██████████	1
185.187.61.169	██████████	1
193.105.189.98	██████████	1
185.183.20.100	██████████	1
193.105.189.234	██████████	1
193.105.189.235	██████████	1
92.118.111.12	██████████	1

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Peers

There are 77 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
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
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 Ltd
AS62167	Tismi BV
AS6233	xTom
AS63927	RISE
AS6424	EDGOO NETWORKS
AS6461	Zayo Bandwidth
AS6939	Hurricane Electric LLC
AS8220	COLT Technology Services Group Limited
AS8359	MTS PJSC
AS8455	atom86 BV
AS8708	DIGI ROMANIA S.A.
AS8966	EMIRATES TELECOMMUNICATIONS GROUP COMPANY (ETISALAT GROUP) PJSC
AS9044	BSE Software GmbH
AS9304	HGC Global Communications Limited
AS9498	BHARTI Airtel Ltd.

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Upstreams

There are 3 upstreams for this ASN.

upstreams	Name
AS174	Cogent Communications
AS3257	GTT Communications Inc.
AS6461	Zayo Bandwidth

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Downstreams

There are no downstreams for this ASN.

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Pingable IPs

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

IP Address	ASN	Details
91.201.105.1	AS43872 Optinet U.K. Limited	`0.57ms` from London, GB
217.198.183.161	AS43872 Optinet U.K. Limited	`0.60ms` from London, GB
185.183.22.51	AS43872 Optinet U.K. Limited	`0.21ms` from London, GB
185.253.179.33	AS43872 Optinet U.K. Limited	`0.38ms` from London, GB
92.118.111.8	AS43872 Optinet U.K. Limited	`0.58ms` from London, GB
193.247.101.23	AS43872 Optinet U.K. Limited	`0.24ms` from London, GB
185.253.177.2	AS43872 Optinet U.K. Limited	`0.46ms` from London, GB
185.183.23.98	AS43872 Optinet U.K. Limited	`0.23ms` from London, GB
185.187.61.229	AS43872 Optinet U.K. Limited	`0.30ms` from London, GB
193.105.189.204	AS43872 Optinet U.K. Limited	`0.30ms` from London, GB
185.183.21.92	AS43872 Optinet U.K. Limited	`0.25ms` from London, GB
45.136.108.93	AS43872 Optinet U.K. Limited	`0.30ms` from London, GB
185.183.20.200	AS43872 Optinet U.K. Limited	`0.17ms` from London, GB
2a0b:180:dc02:eb01::54	AS43872 Optinet U.K. Limited	`0.85ms` from London, GB
176.101.169.50	AS43872 Optinet U.K. Limited	`0.46ms` from London, GB
193.247.165.123	AS43872 Optinet U.K. Limited	`0.61ms` from London, GB
193.247.94.6	AS43872 Optinet U.K. Limited	`0.25ms` from London, GB
2a0b:180::40	AS43872 Optinet U.K. Limited	`0.47ms` from London, GB
2a0b:180:dc00:eb02::219	AS43872 Optinet U.K. Limited	`0.85ms` from London, GB
5.253.254.21	AS43872 Optinet U.K. Limited	`0.25ms` from London, GB
195.234.28.226	AS43872 Optinet U.K. Limited	`0.29ms` from London, GB
185.253.178.1	AS43872 Optinet U.K. Limited	`0.24ms` from London, GB
5.253.255.193	AS43872 Optinet U.K. Limited	`0.25ms` from London, GB
2a0b:180:dc01:eb01::50	AS43872 Optinet U.K. Limited	`0.86ms` from London, GB
185.253.176.69	AS43872 Optinet U.K. Limited	`0.25ms` 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
201.23.63.0	AS272710 FIBRASIL INFRAESTRUTURA E FIBRA OTICA S.A.	`16.46ms` from Fortaleza, BR
90.207.111.64	AS5607 Sky UK Limited	`4.33ms` from London, GB
97.202.217.96	AS6167 Verizon Business	`14.08ms` from Los Angeles, US
75.46.148.128	AS7018 AT&T Enterprises, LLC	`2.68ms` from Los Angeles, US
120.29.68.0	AS17639 Converge ICT Solutions Inc.	`1.78ms` from Manila, PH
73.46.126.192	AS7922 Comcast Cable Communications, LLC	`8.86ms` from Miami, US
37.45.186.144	AS6697 Republican Unitary Telecommunication Enterprise Beltelecom	`1.85ms` from Minsk, BY
79.5.63.0	AS3269 Telecom Italia S.p.A.	`0.33ms` from Palermo, IT
172.189.64.32	AS8075 Microsoft Corporation	`0.16ms` from Paris, FR
71.94.82.160	AS20115 Charter Communications LLC	`10.04ms` from San Jose, US
110.116.70.16	AS56046 China Mobile communications corporation	`4.42ms` from Suzhou, CN
69.71.89.128	AS26288 Keewaytinook Okimakanak	`7.52ms` from Toronto, CA
94.68.230.240	AS6799 Ote SA (Hellenic Telecommunications Organisation)	`12.70ms` from Athens, GR
181.235.143.208	AS3816 COLOMBIA TELECOMUNICACIONES S.A. ESP BIC	`6.88ms` from Bogota, CO
52.227.85.208	AS8075 Microsoft Corporation	`0.68ms` from Boydton, US
197.39.103.48	AS8452 TE-AS	`4.65ms` from Cairo, EG
185.43.237.192	AS49223 EVEREST TV AND RADIO COMPANY LLC	`2.93ms` from Kyiv, UA
88.33.102.64	AS3269 Telecom Italia S.p.A.	`2.59ms` from Milan, IT
142.118.101.96	AS577 Bell Canada	`1.81ms` from Montreal, CA
47.16.63.16	AS6128 Cablevision Systems Corp.	`9.72ms` from New York City, US
112.69.209.192	AS17511 OPTAGE Inc.	`1.51ms` from Osaka, JP
20.27.117.128	AS8075 Microsoft Corporation	`0.32ms` from Osaka, JP
125.9.203.80	AS9824 JCOM Co., Ltd.	`11.97ms` from Osaka, JP
86.245.144.112	AS3215 Orange S.A.	`2.40ms` from Paris, FR
52.90.40.160	AS14618 Amazon.com, Inc.	`0.38ms` from Reston, 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 5.253.252.218

traceroute to 5.253.252.218 (5.253.252.218): 64 hops max, 52 byte packets

4 [] 195.66.237.113 0.69 ms

5 [AS43872] 5.253.252.218 0.711 ms

Measurement taken from

IPinfo ProbeNet in London, GB

On September 18th 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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