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Data as of Nov 5, 2026

5.133.184.0/22

No anonymizer space · no proxy exits in 30 days

Mainframe & Cybernetic Systems Limited

Announcement
this exact prefix
RPKI valid
Announced by
AS25577
Type
Hosting
Risk
50 / 100 · Medium

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
5.133.184.0 - 5.133.189.2551,536UK-FRAME-20120705Mainframe & Cybernetic Systems Limited (ORG-MCSL9-RIPE) · GBALLOCATED PAMar 3, 2026frank@bec.uk
└ 5.133.184.128/2732AIFS-NETAIFS (ORG-AA3192-RIPE) · GBASSIGNED PANov 22, 2024ITOperations@aifs.co.uk
└ 5.133.185.0/2816Home-Integration-SolutionsHome Integration Solutions LtdASSIGNED PANov 15, 2012frank@bec.uk
via UK-FRAME-20120705
└ 5.133.185.16/2816Skillwise-netSkillwise UK LtdASSIGNED PANov 20, 2012frank@bec.uk
via UK-FRAME-20120705
└ 5.133.185.112/2816Matsco-NET6DG / MatscoASSIGNED PAApr 27, 2018frank@bec.uk
via UK-FRAME-20120705
└ 5.133.185.192/2664DirectPAthDirect Path Solutions LimitedASSIGNED PASep 19, 2012frank@bec.uk
via UK-FRAME-20120705
└ 5.133.186.0/24256CNS-NETCommercial Network ServicesASSIGNED PASep 18, 2012frank@bec.uk
via UK-FRAME-20120705
└ 5.133.187.0/24256CNS-NETCommercial Network ServicesASSIGNED PASep 18, 2012frank@bec.uk
via UK-FRAME-20120705

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS25577

GB
Name
Mainframe & Cybernetic Systems Limited
Type
Hosting
Registered
Jan 15, 2003
Domain
bec.uk
Website
bec.uk
Spamhaus ASN-DROP
not listed