Autonomous System details

AS25577

MAINFRAME & CYBERNETIC SYSTEMS LIMITED  ·  bec.uk

United Kingdom

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AS25577 – MAINFRAME & CYBERNETIC SYSTEMS LIMITED

Field Value
Country United Kingdom
Website bec.uk
Hosted domains 50,118
IPv4 addresses 51,200
IPv6 addresses 79,228,162,514,264,338,000,000,000,000
ASN type Hosting
Registry ripe
Allocated 23 years ago on Jan 15, 2003
Updated 2 months ago on Mar 03, 2026

IP Ranges

Netblock Company Num of IPs
84.45.64.0/18 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 16,384
84.45.32.0/19 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 8,192
84.45.16.0/20 Red Matter 4,096
81.27.88.0/21 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 2,048
84.45.8.0/21 Net Tech Engineering 2,048
109.104.120.0/21 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 2,048
5.133.184.0/22 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 1,024
37.58.24.0/22 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 1,024
81.27.80.0/22 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 1,024
81.27.88.0/22 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 1,024
109.104.116.0/22 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 1,024
109.104.124.0/22 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 1,024
185.5.88.0/22 Secure Email Hosting Limited 1,024
5.133.188.0/23 Commercial Network Services 512
31.3.212.0/23 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 512
78.40.56.0/23 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 512
81.27.66.0/23 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 512
81.27.72.0/23 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 512
81.27.92.0/23 CERKEZKOY ORGANIZE SANAYI BOLGESI 512
85.159.90.0/23 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 512
109.68.64.0/23 Emailcenter DC 512
109.104.96.0/23 C4L Wifi 512
109.104.100.0/23 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 512
109.104.122.0/23 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 512
185.229.20.0/23 Easy Internet Solutions Limited 512
5.133.191.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
31.3.208.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
31.3.211.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
31.3.221.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
31.3.223.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
37.58.29.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
62.69.143.0/24 SLOUGH 256
77.73.11.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
77.73.15.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
78.40.61.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
81.27.64.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
81.27.75.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
81.27.76.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
81.27.81.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
81.27.87.0/24 C4L Infrastructure 256
81.27.92.0/24 FREEOLA Limited 256
81.27.94.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
81.27.95.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
82.197.72.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
84.45.75.0/24 Rocktime 256
85.159.88.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
85.159.95.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
109.68.68.0/24 Emailcenter DC2 256
109.104.98.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
109.104.105.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
109.104.112.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
109.104.114.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
178.251.233.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256
178.251.239.0/24 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 256

Netblock Company
2001:9d8::/32 MAINFRAME & CYBERNETIC SYSTEMS LIMITED
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WHOIS Details

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                                                ASHandle:       AS25577
                                                OrgID:          AS25577
                                                ASName:         AS25577
                                                ASNumber:       AS25577
                                                RegDate:        0000-00-00
                                                Updated:        0000-00-00
                                                TechHandle:     AA00-AAAA
                                                Source:         AAAA
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Hosted Domains

There are 50,118 domain names hosted across 754 IP addresses on this ASN.

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IP Address Domain Domains on this IP
81.27.92.110 ██████████ 16,814
81.27.92.93 ██████████ 2,227
81.27.92.126 ██████████ 1,474
185.229.21.108 ██████████ 1,245
81.27.92.125 ██████████ 1,199
185.229.20.37 ██████████ 1,026
185.229.21.116 ██████████ 871
185.229.21.115 ██████████ 803
185.229.21.105 ██████████ 667
185.229.21.107 █████████ 648

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Peers

There are 67 peers for this ASN.

Peers Name
AS13030 Init7 (Switzerland) Ltd.
AS137409 GSL Networks Pty LTD
AS14840 BR.Digital Telecom
AS15412 FLAG TELECOM UK LIMITED
AS15802 Emirates Integrated Telecommunications Company PJSC
AS1828 Unitas Global
AS198150 SIACOM JSC
AS203035 Xara Computers (UK) Ltd
AS205434 BE SLOUGH DC UK LIMITED
AS20562 Broadband Hosting B.V.
AS206626 PSD Group
AS207162 L3C Limited
AS207841 Inferno Communications Ltd
AS212483 LEVEL EIGHTY-SIX COMMUNICATIONS LTD
AS215638 Cilix Limited
AS22356 Durand do Brasil Ltda
AS24482 SG.GS
AS25160 Vorboss Limited
AS263444 Open X Tecnologia Ltda
AS286 GTT Communications Inc.
AS28792 Public Internet Ltd
AS29049 Delta Telecom Ltd
AS3170 VeloxServ Communications Ltd
AS31708 Coreix Ltd
AS31742 Sotaconnect Network
AS3223 Voxility LLP
AS3257 GTT Communications Inc.
AS34927 iFog GmbH
AS35266 EX Networks Limited
AS36236 NetActuate, Inc
AS36994 Vodacom
AS37721 Virtual Technologies & Solutions
AS39120 Convergenze S.p.A.
AS39122 Blacknight Internet Solutions Limited
AS39351 31173 Services AB
AS42473 Anexia Cloud Solutions GmbH
AS43733 Viva Armenia CJSC
AS4455 IX Reach Ltd
AS44934 Arachsys Internet Services Ltd
AS48070 DSM (GB) Limited
AS48185 team.blue NV
AS49503 MAINFRAME & CYBERNETIC SYSTEMS LIMITED
AS49544 i3D.net B.V
AS50300 CustodianDC Limited
AS50882 Maxnett Ltd.
AS51572 Cerulean Solutions Limited
AS52075 Wifirst S.A.S.
AS53062 ALT | GRUPO BRASIL TECPAR
AS5413 Wavenet Limited
AS56990 Syscomm Limited
AS58511 Anycast Global Backbone
AS59493 Cudo Ventures Ltd
AS61049 Exascale Ltd
AS6204 INTERKVM HOST SRL
AS62167 Tismi BV
AS6667 EUNET FINLAND
AS6894 KDDI Europe Ltd
AS6939 Hurricane Electric LLC
AS7195 EDGEUNO S.A.S
AS7575 Australian Academic and Research Network (AARNet)
AS8218 Zayo Infrastructure France SA
AS8426 ClaraNET LTD
AS8943 Jump Networks Ltd
AS9009 M247 Europe SRL
AS9044 BSE Software GmbH
AS917 Misaka Network, Inc.
AS9498 BHARTI Airtel Ltd.
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ASN API & Database

Upstreams

There are 3 upstreams for this ASN.

upstreams Name
AS3223 Voxility LLP
AS3257 GTT Communications Inc.
AS6939 Hurricane Electric LLC
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ASN API & Database

Downstreams

There are 9 downstreams for this ASN.

Downstreams Name
AS203035 Xara Computers (UK) Ltd
AS206626 PSD Group
AS31708 Coreix Ltd
AS44934 Arachsys Internet Services Ltd
AS49503 MAINFRAME & CYBERNETIC SYSTEMS LIMITED
AS50882 Maxnett Ltd.
AS51572 Cerulean Solutions Limited
AS56990 Syscomm Limited
AS59493 Cudo Ventures Ltd
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ASN API & Database

Pingable IPs

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

IP Address ASN Details
84.45.17.4 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.57ms from London, GB
31.3.212.1 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.65ms from London, GB
84.45.68.1 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.67ms from London, GB
84.45.83.1 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.57ms from London, GB
84.45.109.97 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.67ms from London, GB
84.45.65.225 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.77ms from London, GB
84.45.84.65 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 12.06ms from London, GB
84.45.10.161 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.60ms from London, GB
84.45.90.105 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 11.99ms from London, GB
2001:9d8:9000::542d:18ea AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.67ms from London, GB
62.69.143.1 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 1.50ms from London, GB
81.27.88.216 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 12.06ms from London, GB
81.27.87.1 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.66ms from London, GB
84.45.46.162 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 11.94ms from London, GB
77.73.15.1 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.50ms from London, GB
84.45.43.2 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.65ms from London, GB
109.104.112.233 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.64ms from London, GB
84.45.64.197 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 11.84ms from London, GB
84.45.8.10 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.66ms from London, GB
78.40.61.254 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.63ms from London, GB
84.45.106.41 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 12.00ms from London, GB
84.45.100.1 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.63ms from London, GB
84.45.12.141 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.75ms from London, GB
2001:9d8:2033::a AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 0.65ms from London, GB
84.45.82.254 AS25577 MAINFRAME & CYBERNETIC SYSTEMS LIMITED 1.16ms 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
174.172.225.201 AS7922 Comcast Cable Communications, LLC 11.94ms from Ashburn, US
202.88.237.105 AS17465 Cable ISP in India 16.47ms from Chennai, IN
117.239.149.57 AS9829 National Internet Backbone 5.17ms from Chennai, IN
62.8.54.73 AS15933 ith Kommunikationstechnik GmbH 17.27ms from Frankfurt am Main, DE
171.240.246.25 AS7552 Viettel Group 0.87ms from Ho Chi Minh City, VN
117.123.196.201 AS17849 SK Broadband Co Ltd 2.46ms from Incheon, KR
199.0.193.185 AS14174 North Central Kansas Community Network Co. 14.62ms from Kansas City, US
80.3.201.233 AS5089 Virgin Media Limited 7.06ms from London, GB
20.49.156.57 AS8075 Microsoft Corporation 0.44ms from London, GB
4.158.46.249 AS8075 Microsoft Corporation 0.25ms from London, GB
52.189.250.41 AS8075 Microsoft Corporation 0.53ms from Melbourne, AU
93.62.122.25 AS12874 Fastweb SpA 0.94ms from Milan, IT
84.21.90.137 AS8905 Digit One LLC 1.51ms from Moscow, RU
69.193.36.9 AS11351 Charter Communications Inc 19.47ms from New York City, US
128.112.241.201 AS88 Princeton University 2.50ms from New York City, US
200.50.99.233 AS15311 TELEFONICA EMPRESAS CHILE SA 2.10ms from Santiago, CL
216.251.67.233 AS14416 Internet de Nuevo Laredo, S.A de C.V. 4.20ms from Schertz, US
193.180.64.25 AS209578 Svea Internet AB 0.46ms from Stockholm, SE
222.156.117.57 AS7482 Asia Pacific On-line Service Inc. 18.19ms from Taipei, TW
75.190.127.25 AS11426 Charter Communications Inc 10.95ms from Atlanta, US
122.143.209.73 AS4837 CHINA UNICOM China169 Backbone 10.63ms from Changchun, CN
171.237.76.153 AS7552 Viettel Group 2.05ms from Hanoi, VN
119.17.245.41 AS24173 Netnam Company 0.85ms from Ho Chi Minh City, VN
49.247.213.73 AS38700 SMILESERV 1.20ms from Incheon, KR
58.124.236.169 AS9318 SK Broadband Co Ltd 4.59ms from Incheon, KR

Traceroute

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

$
traceroute -a -n -q1 -f3 84.45.40.121
traceroute to 84.45.40.121 (84.45.40.121): 64 hops max, 52 byte packets
3 [] 5.57.80.217 0.454 ms
5 [AS25577] 84.45.14.107 2.995 ms
6 *
7 [AS25577] 84.45.40.121 12.259 ms
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 AS25577 at robtex.

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