Data as of Nov 11, 2026
121.136.89.0/24
No anonymizer space · no proxy exits in 30 daysKorea Telecom
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 121.128.0.0/12 since Sep 2009 | AS4766 | Residential | 7,464 281 always on | Korea Telecom | |
| 121.128.0.0/11 since Apr 2006 | AS4766 | Residential | 14,938 498 always on | Korea Telecom |
Network & registry
Announced by
Covering announcement 121.136.0.0/13
- Prefix
- 121.136.0.0/13
- Announced by
- AS4766 Korea Telecom
- Type
- Residential
- Proxy exits
- 3,776
- Always-on exits
- 148
- RPKI
- No RPKI
- Netname
- KORNET-KR
- Registrant
- Korea Telecom
- RIR
- APNIC
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
- 2
Routing timeline
Covering aggregate above, the prefix's own history below
121.136.0.0/13
Routing history
- Pattern
- Stable
- First seen
- Dec 2009
- Current origin since
- Dec 2009 · 17 yr
- Origin networks
- 1
Whois
Registration for this announcement
- Range
- 121.
128. 0. 0/ 11 - Netname
- KORNET-KR
- Registrant
- Korea Telecom
- Registrant country
- KR
- Organization
- Korea Telecom
- Org country
- KR
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MNT-KRNIC-AP
- RIR
- APNIC
- Country
- KR
- Delegated
- Apr 7, 2006
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR