Data as of Nov 8, 2026

188.221.154.0/23

Anonymizer · ISP proxy

Korea Telecom · space held by Sky UK Limited

Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recent change
New origin Jun 2026
its first announcement on record
IPv4 market

Path

Announced by AS4766 since Jun 2026 · 5 mo ago
1 · Holder
record created Feb 5, 2026
2 · Leased from
for its owner Sky UK Limited
3 · Announced by
AS4766 Korea Telecom
since Jun 2026 · 5 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

IP brokers

NameIn 188.221.154.0/23/24s
IPXO
512100%
2
Leased from

Owners leasing their own space

NameIn 188.221.154.0/23/24s
Sky UK Limited
512100%
2

Lineage

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

188.221.154.0/23

From the registry to its use

  1. Feb 5, 2026
    Registry record
    Sky UK Limited
    ALLOCATED PA
    188.220.0.0/14
  2. Feb 5, 2026
    Reallocated
    Sky UK Limited
    SUB-ALLOCATED PA
    188.220.0.0/15
  3. Jun 12, 2026– today
    Announced
    AS4766 Korea Telecom
    Internet provider
  4. Jun 13, 2026
    Route object
    IPXO
    RIPE route object for AS4766 Korea Telecom, maintainer NETUTILS-MNT
  5. Jun 15, 2026
    Route object
    IPXO
    RADB route object for AS4766 Korea Telecom, maintainer MAINT-AS834
  6. 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
188.220.0.0/14262,144UK-SKY-20090526Sky UK Limited (ORG-SUL39-RIPE) · GBALLOCATED PAFeb 5, 2026hostmaster@sky.uk
└ 188.220.0.0/15131,072SKY-LEASED-IPXOSky UK Limited (ORG-SUL39-RIPE) · GBSUB-ALLOCATED PAFeb 5, 2026report@abuseradar.com

Network & registry

IPv4 market

Holder

Organization
Sky UK Limited
Handle
ORG-SUL39-RIPE
Range
188.220.0.0/14
Registration type
ALLOCATED PA
Record created
Feb 5, 2026
Origin network

AS4766

KR
Name
Korea Telecom
Type
Internet provider
Registered
Apr 22, 1996
Domain
kt.com
Website
www.kt.com/eng/main.jsp
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
1