Data as of Nov 13, 2026
81.27.76.0/24
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. | 512 | UK-FRAME-20020411 | Mainframe & Cybernetic Systems Limited (ORG-MCSL9-RIPE) · GB | ALLOCATED PA | Mar 3, 2026 | frank@ |
| └ 81.27.76.48/29 | 8 | AREPO-NET-A | ISP Hosting Database Driven Client Web Sites and Colo Servers | ASSIGNED PA | Jan 15, 2004 | frank@ via UK-FRAME-20020411 |
| └ 81.27.76.128/28 | 16 | NOWMARKETING-VDS-NET | Now Marketing Global Limited (ORG-NMGL2-RIPE) | ASSIGNED PA | Jun 21, 2010 | frank@ via UK-FRAME-20020411 |
| └ 81.27.76.192/26 | 64 | CAST-NET-A | 4Cast Ltd. | ASSIGNED PA | Jan 15, 2004 | 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
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Mar 2025
- Current origin since
- Jan 2026 · 10 mo
- 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. 75. 0 - 81. 27. 76. 255 - Netname
- UK-FRAME-20020411
- 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
- Apr 11, 2002
- Status
- assigned
Report abuse
Abuse contact
- frank@
bec. uk - Name
- Abuse-C Role
- Handle
- AR79596-RIPE