Data as of Nov 13, 2026

31.3.223.0/24

No anonymizer space · no proxy exits in 30 days

Mainframe & Cybernetic Systems Limited

Announcement
this exact prefix
No RPKI
Announced by
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
31.3.223.0/24256UK-FRAME-20110408Mainframe & Cybernetic Systems Limited (ORG-MCSL9-RIPE) · GBALLOCATED PAMar 3, 2026frank@bec.uk
└ 31.3.223.128/2732Metor-NETMeteor Communications (Europe) LtdASSIGNED PASep 12, 2016frank@bec.uk
via UK-FRAME-20110408

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

Routing timeline

Who has announced this prefix

Summary

Routing history

Pattern
Reactivated
First seen
Dec 2015
Current origin since
Mar 2025 · 1.7 yr
Origin networks
2
Last change of origin
Mar 2025
Recorded history

History

Handoffs
1