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Data as of Nov 10, 2026

51.194.144.0/22

No anonymizer space · no proxy exits in 30 days

Cloudflare, Inc. · space held by Sky UK Limited

Announcement
this exact prefix
RPKI valid
Announced by
AS13335
Type
Hosting
Risk
50 / 100 · Medium
Recent change
New origin Jun 2026
its first announcement on record
IPv4 market

Path

Announced by AS13335 since Jun 2026 · 5 mo ago
1 · Holder
Sky UK Limited
record created Feb 5, 2026
2 · Leased from
IPXO
3 · Announced by
AS13335 Cloudflare, Inc.
since Jun 2026 · 5 mo ago
4 · Use
Hosting

Lineage

How this block came to its use, oldest first. The whole IPv4 market →

51.194.144.0/22

From the registry to its use

  1. Feb 5, 2026
    Registry record
    Sky UK Limited
    ALLOCATED PA
    51.194.0.0/16
  2. Feb 5, 2026
    Reallocated
    Sky UK Limited
    SUB-ALLOCATED PA
    51.194.128.0/17
  3. May 30, 2026
    Route object
    IPXO
    RADB route object for AS209242 Cloudflare London, LLC, maintainer MAINT-AS834
  4. May 30, 2026
    Route object
    IPXO
    RIPE route object for AS209242 Cloudflare London, LLC, maintainer NETUTILS-MNT
  5. Jun 2, 2026
    Route object
    IPXO
    RIPE route object for AS13335 Cloudflare, Inc., maintainer NETUTILS-MNT
  6. Jun 24, 2026– Nov 9, 2026
    Announced
    AS13335 Cloudflare, Inc.
    Hosting
  7. Aug 2, 2026
    Route object
    IPXO
    RADB route object for AS13335 Cloudflare, Inc., maintainer MAINT-AS834
  8. today
    Leased from
    IPXO
    IP 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.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
51.194.0.0/1665,536UK-SKY-19930901Sky UK Limited (ORG-SUL39-RIPE) · GBALLOCATED PAFeb 5, 2026hostmaster@sky.uk
└ 51.194.128.0/1732,768SKY-LEASED-IPXOSky UK Limited (ORG-SUL39-RIPE) · GBSUB-ALLOCATED PAFeb 5, 2026report@abuseradar.com
└ 51.194.144.0/221,024NET-51-194-144-0-22unknownASSIGNED PAJun 2, 2026report@abuseradar.com

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
IPv4 market

Holder

Holder in the market →
Organization
Sky UK Limited
Handle
ORG-SUL39-RIPE
Range
51.194.0.0/16
Registration type
ALLOCATED PA
Record created
Feb 5, 2026
Origin network

AS13335

US
Name
Cloudflare, Inc.
Type
Hosting
Registered
Jul 14, 2010
Domain
cloudflare.com
Website
www.cloudflare.com
Industry
Hosting and Cloud Provider
Spamhaus ASN-DROP
not listed
VPN servers
13