Data as of Nov 6, 2026
51.241.136.0/24
No anonymizer space · no proxy exits in 30 daysK3X SYSTEMS Ltd · space held by Sky UK Limited
Announcement
this exact prefix
RPKI valid
Announced by
Type
Unknown
Risk
0 / 100 · Low
Recent change
New origin May 2026
its first announcement on record
IPv4 market
Path
Announced by AS197284 since May 2026 · 6 mo ago
2 · Leased from
4 · Use
Unknown
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
51.241.136.0/24
From the registry to its use
- Feb 5, 2026Registry recordSky UK LimitedALLOCATED PA51.241.0.0/16
- Feb 5, 2026ReallocatedSky UK LimitedSUB-ALLOCATED PA51.241.128.0/17
- May 19, 2026– today
- May 28, 2026Route objectIPXORIPE route object for AS197284 K3X SYSTEMS Ltd, maintainer NETUTILS-MNT
- May 28, 2026Route objectIPXORADB route object for AS197284 K3X SYSTEMS Ltd, maintainer MAINT-AS834
- todayLeased fromIPXOIP broker
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 |
|---|---|---|---|---|---|---|
| 51.241.0.0/16 | 65,536 | UK-SKY-19930901 | Sky UK Limited (ORG-SUL39-RIPE) · GB | ALLOCATED PA | Feb 5, 2026 | hostmaster@ |
| └ 51.241.128.0/17 | 32,768 | SKY-LEASED-IPXO | Sky UK Limited (ORG-SUL39-RIPE) · GB | SUB-ALLOCATED PA | Feb 5, 2026 | report@ |
| └ 51.241.136.0/24 | 256 | NET-51-241-136-0-24 | unknown | ASSIGNED PA | May 28, 2026 | report@ |
Network & registry
IPv4 market
Holder
- Organization
- Sky UK Limited
- Handle
- ORG-SUL39-RIPE
- Range
- 51.
241. 0. 0/ 16 - Registration type
- ALLOCATED PA
- Record created
- Feb 5, 2026
Origin network
AS197284
GB
- Name
- K3X SYSTEMS Ltd
- Type
- Business
- Registered
- May 26, 2026
- Domain
- k3x-systems.com
- Industry
- Law, Business, and Consulting Services
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- May 2026
- Current origin since
- May 2026 · 6 mo
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 51.
241. 136. 0/ 24 - Netname
- NET-51-241-136-0-24
- Registrant country
- GB
- Organization
- Not stated by the registry
- Type
- ASSIGNED PA
- Created
- May 28, 2026
- Updated
- May 28, 2026
- Maintainer
- netutils-mnt
- RIR
- RIPE NCC
- Country
- GB
- Delegated
- Sep 1, 1993
- Status
- assigned
Report abuse
Abuse contact
- report@
abuseradar. com - Name
- Private Customer
- Handle
- PC21490-RIPE