Data as of Nov 8, 2026

101.53.81.0/24

Anonymizer · ISP proxy

Korea Telecom · space held by ILINKKOREA

Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
IPv4 market

Path

1 · Holder
2 · Leased from
its owner, directly
3 · Announced by
AS4766 Korea Telecom
since Mar 2026 · 8 mo ago
4 · Use
ISP proxy
anonymizer space, operator not named

Operators, sellers and brokers

Leased from

Owners leasing their own space

NameIn 101.53.81.0/24/24s
Eleven Holdings
256100%
1
ILINKKOREA
256100%
1

Lineage

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

101.53.81.0/24

From the registry to its use

  1. Jun 1, 2012– Nov 8, 2014
    Announced
    AS10068 ILINKKOREA
    as part of 101.53.64.0/19
    101.53.64.0/19
  2. Jun 1, 2012– Nov 8, 2014
    Announced
    AS10068 ILINKKOREA
  3. Nov 15, 2014– today
    Announced
    AS38676 flexnetworks
    as part of 101.53.64.0/19
    101.53.64.0/19
  4. Aug 27, 2016– Jul 4, 2017
    Announced
    AS38700 SMILESERV
    Hosting
  5. Nov 13, 2024– Dec 25, 2025
    Announced
    AS216425 TEFEXIA Co., Ltd.
    Hosting
  6. Mar 8, 2026– today
    Announced
    AS4766 Korea Telecom
    Internet provider
  7. Mar 9, 2026
    Route object
    Eleven Holdings
    RADB route object for AS4766 Korea Telecom, maintainer MAINT-AS214937
  8. today
    Registry record
    ILINKKOREA
    ALLOCATED PORTABLE
    101.53.64.0/19
  9. today
    Route object
    AS4766 Korea Telecom
    APNIC route object for AS4766 Korea Telecom, maintainer MNT-KRNIC-AP
  10. today
    Route object
    AS216425 TEFEXIA Co., Ltd.
    APNIC route object for AS216425 TEFEXIA Co., Ltd., maintainer MNT-KRNIC-AP
  11. today
    Leased from
    Eleven Holdings
    Lessor

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
101.53.64.0/19
since Nov 2014
AS38676Hosting1
1 always on
ILINKKOREA

Network & registry

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