Data as of Nov 14, 2026

178.251.239.64/28

No anonymizer space · no proxy exits in 30 days

Mainframe & Cybernetic Systems Limited

Announcement
No RPKI
Announced by
Type
Hosting
Risk
50 / 100 · Medium

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
178.251.239.0/24256UK-FRAME-20100630Mainframe & Cybernetic Systems Limited (ORG-MCSL9-RIPE) · GBALLOCATED PAMar 3, 2026frank@bec.uk
└ 178.251.239.64/2816OIL-900349The Oil and Pipelines AgencyASSIGNED PAMar 21, 2013frank@bec.uk
via UK-FRAME-20100630

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 178.251.239.0/24

178.251.239.0/24

Routing history

Pattern
Reactivated
First seen
Aug 2012
Current origin since
Mar 2025 · 1.7 yr
Origin networks
2
Last change of origin
Mar 2025
Recorded history

History

Handoffs
1