Data as of Nov 14, 2026
121.187.23.0/24
No anonymizer space · no proxy exits in 30 daysDOUZONEBIZON · space held by Korea Telecom
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 121.184.0.0/13 since Dec 2009 | AS4766 | Residential | 3,514 99 always on | Korea Telecom | |
| 121.176.0.0/12 since Sep 2009 | AS4766 | Residential | 7,200 203 always on | Korea Telecom | |
| 121.160.0.0/11 since Nov 2006 | AS4766 | Residential | 15,201 450 always on | Korea Telecom |
Network & registry
Origin network
AS55615
KR
- Name
- DOUZONEBIZON
- Type
- Business
- Registered
- Jul 21, 2010
- Domain
- douzone.com
- Industry
- Buildings, Repair, Maintenance (Pest Control, Landscaping, Cleaning, Locksmiths, Car Washes, etc)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2019
- Current origin since
- Feb 2019 · 7.8 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS55615 | RADB | AS55615 | MAINT-AS9318 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 121.
160. 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
- Nov 1, 2006
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR