Data as of Nov 9, 2026
203.237.142.0/24
No anonymizer space · no proxy exits in 30 daysDaejeon University · space held by Korean Education Network
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.237.128.0/19 since May 2005 | AS3786 | Business | 25 1 always on | Korean Education Network | |
| 203.237.128.0/17 since May 2005 | AS4766 | Residential | 108 1 always on | Korean Education Network |
Network & registry
Announced by
Covering announcement 203.237.128.0/20
- Prefix
- 203.237.128.0/20
- Announced by
- AS23983 Daejeon University
- Type
- Business
- Proxy exits
- 16
- RPKI
- No RPKI
- Netname
- KREN-KR
- Registrant
- Korean Education Network
- RIR
- APNIC
Origin network
AS23983
KR
- Name
- Daejeon University
- Type
- Education
- Registered
- Dec 30, 2003
- Domain
- dju.ac.kr
- Industry
- Computer and Information Technology
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
203.237.128.0/20
Routing history
- Pattern
- Stable
- First seen
- May 2005
- Current origin since
- May 2005 · 22 yr
- Origin networks
- 1
IRR
Route objects on 203.237.128.0/20
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS23983 | RADB | Daejeon University | MAINT-AS4766 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 203.
237. 128. 0/ 17 - Netname
- KREN-KR
- Registrant
- Korean Education Network
- Registrant country
- KR
- Organization
- Korean Education Network
- Org country
- KR
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Maintainer
- MNT-KRNIC-AP
- RIR
- APNIC
- Country
- KR
- Delegated
- Sep 29, 1996
- Status
- assigned
Report abuse
Abuse contact
- irt@
nic. or. kr - Name
- IRT-KRNIC-KR
- Handle
- IRT-KRNIC-KR