Data as of Nov 8, 2026
203.173.99.0/24
Anonymizer · ISP proxyKorea Telecom · space held by ILINKKOREA
Announcement
this exact prefix
RPKI valid
Announced by
Type
ISP proxy
Risk
90 / 100 · Critical
Recently moved
Recent change
New origin May 2026
from AS216425 TEFEXIA Co., Ltd.
IPv4 market
Path
Announced by AS4766 since May 2026 · 5 mo ago
1 · Holder
4 · Use
ISP proxy
anonymizer space, operator not named
Operators, sellers and brokers
Leased from
Owners leasing their own space
| Name | In 203.173.99.0/24 | /24s |
|---|---|---|
| Eleven Holdings | 256100% | 1 |
| ILINKKOREA | 256100% | 1 |
Lineage
How this block came to its use, oldest first. The whole IPv4 market →
203.173.99.0/24
From the registry to its use
- Nov 1, 2005– Nov 8, 2014
- May 1, 2012– Nov 8, 2014AnnouncedAS10068 ILINKKOREA
- Nov 15, 2014– today
- Apr 6, 2025– Jul 22, 2025
- May 25, 2026Route objectEleven HoldingsRADB route object for AS4766 Korea Telecom, maintainer MAINT-AS214937
- May 31, 2026– today
- todayRegistry recordILINKKOREAALLOCATED PORTABLE203.173.96.0/19
- todayRoute objectAS4766 Korea TelecomAPNIC route object for AS4766 Korea Telecom, maintainer MNT-KRNIC-AP
- todayRoute objectAS151349 Yuki Network LtdAPNIC route object for AS151349 Yuki Network Ltd, maintainer MNT-KRNIC-AP
- todayLeased fromEleven HoldingsLessor
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.173.96.0/19 since Nov 2014 | AS38676 | Hosting | 2 | 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
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- May 2012
- Current origin since
- May 2026 · 5 mo
- Origin networks
- 3
- Last change of origin
- May 2026
Recorded history
History
- Handoffs
- 2
RPKI
Route origin authorizations
Whois
Registration for this announcement
- Range
- 203.
173. 96. 0/ 19 - Netname
- INDICLUB-KR
- Registrant
- ILINKKOREA
- Registrant country
- KR
- Organization
- ILINKKOREA
- Org country
- KR
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MNT-KRNIC-AP
- RIR
- APNIC
- Country
- KR
- Delegated
- Oct 25, 2005
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR