Data as of Nov 5, 2026
178.251.239.144/28
No anonymizer space · no proxy exits in 30 daysMainframe & Cybernetic Systems Limited
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 178.251.239.0/24 | 256 | UK-FRAME-20100630 | Mainframe & Cybernetic Systems Limited (ORG-MCSL9-RIPE) · GB | ALLOCATED PA | Mar 3, 2026 | frank@ |
| └ 178.251.239.144/28 | 16 | LETTERPART-900149 | Letterpart Ltd | ASSIGNED PA | Mar 21, 2013 | frank@ 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
Announced by
Covering announcement 178.251.239.0/24
- Prefix
- 178.251.239.0/24
- Announced by
- AS25577 Mainframe & Cybernetic Systems Limited
- Type
- Hosting
- RPKI
- No RPKI
- Netname
- UK-FRAME-20100630
- Registrant
- Mainframe & Cybernetic Systems Limited
- RIR
- RIPE NCC
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
Whois
Registration for this announcement
- Range
- 178.
251. 239. 0/ 24 - Netname
- UK-FRAME-20100630
- Registrant
- Mainframe & Cybernetic Systems Limited
- Registrant country
- GB
- Organization
- Mainframe & Cybernetic Systems Limited (ORG-MCSL9-RIPE)
- Org country
- GB
- Type
- ALLOCATED PA
- Created
- Mar 3, 2026
- Updated
- Mar 3, 2026
- Maintainer
- lir-uk-frame-1-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Jun 30, 2010
- Status
- assigned
Report abuse
Abuse contact
- frank@
bec. uk - Name
- Abuse-C Role
- Handle
- AR79596-RIPE