Data as of Nov 6, 2026
5.133.189.176/28
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 |
|---|---|---|---|---|---|---|
| 5. | 1,536 | UK-FRAME-20120705 | Mainframe & Cybernetic Systems Limited (ORG-MCSL9-RIPE) · GB | ALLOCATED PA | Mar 3, 2026 | frank@ |
| └ 5.133.189.176/28 | 16 | EmailChecker-NET | unknown | ASSIGNED PA | Jun 29, 2021 | techadmin@ |
Network & registry
Announced by
Covering announcement 5.133.188.0/23
- Prefix
- 5.133.188.0/23
- Announced by
- AS25577 Mainframe & Cybernetic Systems Limited
- Type
- Hosting
- RPKI
- No RPKI
- Netname
- UK-FRAME-20120705
- Registrant
- Mainframe & Cybernetic Systems Limited
- RIR
- RIPE NCC
Routing timeline
Who has announced 5.133.188.0/23
5.133.188.0/23
Routing history
- Pattern
- Stable
- First seen
- Aug 2012
- Current origin since
- Mar 2025 · 1.7 yr
- Origin networks
- 1
IRR
Route objects on 5.133.188.0/23
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS25577 | RIPE | C4L | C4L-MNT | Mar 8, 2025 |
Whois
Registration for this announcement
- Range
- 5.
133. 184. 0 - 5. 133. 189. 255 - Netname
- UK-FRAME-20120705
- 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
- Jul 5, 2012
- Status
- assigned
Report abuse
Abuse contact
- frank@
bec. uk - Name
- Abuse-C Role
- Handle
- AR79596-RIPE