Data as of Nov 14, 2026
121.55.87.0/24
No anonymizer space · no proxy exits in 30 daysGreen Cable Television Station
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 121.55.80.0/20 since Jun 2006 | AS9781 | Residential | 10 | Green Cable Television Station | |
| 121.55.64.0/18 since Jun 2006 | AS9781 | Residential | 48 1 always on | Green Cable Television Station |
Network & registry
Announced by
Covering announcement 121.55.80.0/21
- Prefix
- 121.55.80.0/21
- Announced by
- AS9781 Green Cable Television Station
- Type
- Residential
- Proxy exits
- 4
- RPKI
- No RPKI
- Netname
- GCS-KR
- Registrant
- Green Cable Television Station
- RIR
- APNIC
Origin network
AS9781
KR
- Name
- Green Cable Television Station
- Type
- Internet provider
- Registered
- Dec 10, 1999
- Domain
- gcs.co.kr
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
121.55.80.0/21
Routing history
- Pattern
- Stable
- First seen
- Jun 2006
- Current origin since
- Jun 2006 · 20 yr
- Origin networks
- 1
IRR
Route objects on 121.55.80.0/21
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS9781 | NTTCOM | proxy for HANARO TELECOM route | MAINT-HANARO | May 4, 2008 |
Whois
Registration for this announcement
- Range
- 121.
55. 64. 0/ 18 - Netname
- GCS-KR
- Registrant
- Green Cable Television Station
- Registrant country
- KR
- Organization
- Green Cable Television Station
- Org country
- KR
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MNT-KRNIC-AP
- RIR
- APNIC
- Country
- KR
- Delegated
- May 25, 2006
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR