Data as of Nov 5, 2026
81.27.87.0/24
No anonymizer space · no proxy exits in 30 daysMainframe & Cybernetic Systems Limited
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.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 81. | 1,536 | UK-FRAME-20020411 | Mainframe & Cybernetic Systems Limited (ORG-MCSL9-RIPE) · GB | ALLOCATED PA | Mar 3, 2026 | frank@ |
| └ 81.27.87.0/24 | 256 | C4L-INFRA-NET | C4L Infrastructure | ASSIGNED PA | Sep 16, 2014 | frank@ via UK-FRAME-20020411 |
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
Registry
Holder
- Organization
- Mainframe & Cybernetic Systems Limited
- Handle
- ORG-MCSL9-RIPE
- Range
- 81.
27. 87. 0 - 81. 27. 92. 255 - Registration type
- ALLOCATED PA
- Record created
- Mar 3, 2026
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2025
- Current origin since
- Mar 2025 · 1.7 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS25577 | RIPE | route object | C4L-MNT | Mar 11, 2025 |
Whois
Registration for this announcement
- Range
- 81.
27. 87. 0/ 24 - Netname
- C4L-INFRA-NET
- Registrant
- C4L Infrastructure
- Registrant country
- GB
- Organization
- C4L Infrastructure
- Org country
- GB
- Type
- ASSIGNED PA
- Created
- Sep 16, 2014
- Updated
- Jan 18, 2018
- Maintainer
- IDEGROUP-MNT
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Apr 11, 2002
- Status
- assigned
Report abuse
Abuse contact
- frank@
bec. uk - Name
- Abuse-C Role
- Handle
- AR79596-RIPE