AS number details

AS43872

Optinet U.K. Limited  ·  optinet.co.uk

United Kingdom

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AS43872 – Optinet U.K. Limited

Field Value
Country United Kingdom
Website optinet.co.uk
Hosted domains 18
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 a month ago on Sep 12, 2025

IP Ranges

Netblock Company Num of IPs
5.253.252.0/22 Optinet U.K. Limited 1,024
185.183.20.0/22 Optinet U.K. Limited 1,024
185.253.176.0/22 Optinet U.K. Limited 1,024
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
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
193.247.94.0/24 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
195.234.28.0/24 Optinet U.K. Limited 256
217.198.183.0/24 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 18 domain names hosted across 12 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
185.183.22.26 ██████████ 1
92.118.111.139 ██████████ 1
5.253.255.58 ██████████ 1
185.187.61.169 ██████████ 1
92.118.111.12 ██████████ 1
193.105.189.234 ██████████ 1
185.187.61.232 ██████████ 1

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Peers

There are 78 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, LLC
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.
AS32590 Valve Corporation
AS33891 Core-Backbone GmbH
AS34177 CELESTE SAS
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
AS52075 Wifirst S.A.S.
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
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ASN API ASN Database Download

Upstreams

There are 4 upstreams for this ASN.

upstreams Name
AS174 Cogent Communications, LLC
AS3257 GTT Communications Inc.
AS6461 Zayo Bandwidth
AS6939 Hurricane Electric LLC
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ASN API ASN Database Download

Downstreams

There are no downstreams for this ASN.

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ASN API ASN Database Download

Pingable IPs

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

IP Address ASN Details
185.253.176.69 AS43872 Optinet U.K. Limited 0.28ms from London, GB
5.253.253.235 AS43872 Optinet U.K. Limited 0.44ms from London, GB
5.253.254.21 AS43872 Optinet U.K. Limited 0.28ms from London, GB
195.234.28.226 AS43872 Optinet U.K. Limited 0.31ms from London, GB
185.183.20.20 AS43872 Optinet U.K. Limited 0.17ms from London, GB
2a0b:180:dc01:eb01::50 AS43872 Optinet U.K. Limited 0.86ms from London, GB
5.253.255.193 AS43872 Optinet U.K. Limited 0.26ms from London, GB
185.187.61.225 AS43872 Optinet U.K. Limited 0.30ms from London, GB
91.201.105.1 AS43872 Optinet U.K. Limited 0.57ms from London, GB
185.253.177.51 AS43872 Optinet U.K. Limited 0.47ms from London, GB
193.247.94.2 AS43872 Optinet U.K. Limited 0.27ms from London, GB
45.136.108.93 AS43872 Optinet U.K. Limited 0.31ms from London, GB
176.101.169.115 AS43872 Optinet U.K. Limited 0.45ms from London, GB
185.183.22.58 AS43872 Optinet U.K. Limited 0.23ms from London, GB
193.247.101.84 AS43872 Optinet U.K. Limited 0.26ms from London, GB
2a0b:180:dc02:eb01::54 AS43872 Optinet U.K. Limited 0.89ms from London, GB
185.253.178.1 AS43872 Optinet U.K. Limited 0.25ms from London, GB
217.198.183.187 AS43872 Optinet U.K. Limited 0.66ms from London, GB
2a0b:180:dc00:eb01::217 AS43872 Optinet U.K. Limited 0.91ms from London, GB
185.183.23.98 AS43872 Optinet U.K. Limited 0.24ms from London, GB
185.253.179.60 AS43872 Optinet U.K. Limited 0.35ms from London, GB
185.183.21.92 AS43872 Optinet U.K. Limited 0.25ms from London, GB
193.247.165.139 AS43872 Optinet U.K. Limited 0.57ms from London, GB
92.118.111.11 AS43872 Optinet U.K. Limited 0.56ms from London, GB
2a0b:180::40 AS43872 Optinet U.K. Limited 0.45ms 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
104.119.96.48 AS16625 Akamai Technologies, Inc. 0.41ms from Adelaide, AU
94.70.109.144 AS6799 Ote SA (Hellenic Telecommunications Organisation) 8.65ms from Athens, GR
197.162.21.112 AS24863 Link Egypt (Link.NET) 13.73ms from Cairo, EG
156.213.230.128 AS8452 TE-AS 4.06ms from Cairo, EG
196.119.81.16 AS36925 MEDITELECOM 3.57ms from Casablanca, MA
20.9.116.32 AS8075 Microsoft Corporation 0.18ms from Des Moines, US
51.195.63.208 AS16276 OVH SAS 0.14ms from Frankfurt am Main, DE
117.5.85.160 AS7552 Viettel Group 2.61ms from Hanoi, VN
222.184.169.32 AS4134 CHINANET-BACKBONE 9.18ms from Huai'an, CN
77.38.69.208 AS3212 Telemach Slovenija d.o.o. 1.13ms from Ljubljana, SI
34.98.179.176 AS396982 Google LLC 0.17ms from London, GB
138.229.157.128 AS20115 Charter Communications LLC 5.45ms from Los Angeles, US
151.41.223.192 AS1267 WIND TRE S.P.A. 4.68ms from Milan, IT
96.224.82.80 AS701 Verizon Business 2.65ms from New York City, US
65.41.147.224 AS2379 CenturyLink Communications, LLC 0.63ms from Orlando, US
60.139.122.176 AS17676 SoftBank Corp. 3.52ms from Osaka, JP
193.253.236.160 AS3215 Orange S.A. 1.91ms from Paris, FR
24.18.160.80 AS7922 Comcast Cable Communications, LLC 7.38ms from Seattle, US
211.112.161.48 AS17858 LG POWERCOMM 3.06ms from Seoul, KR
14.9.50.224 AS2516 KDDI CORPORATION 8.94ms from Tokyo, JP
59.110.35.208 AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 1.91ms from Beijing, CN
120.1.87.144 AS4837 CHINA UNICOM China169 Backbone 7.07ms from Beijing, CN
52.254.87.224 AS8075 Microsoft Corporation 0.40ms from Boydton, US
86.59.182.80 AS5483 Magyar Telekom Plc. 4.62ms from Budapest, HU
24.162.132.64 AS11427 Charter Communications Inc 6.17ms from Dallas, 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 185.183.20.50
traceroute to 185.183.20.50 (185.183.20.50): 64 hops max, 52 byte packets
Measurement taken from IPinfo ProbeNet in London, GB
On

Related Networks

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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