Data as of Nov 8, 2026
203.237.248.0/24
No anonymizer space · no proxy exits in 30 daysSangmyung University · space held by Korean Education Network
Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
30 / 100 · Medium
Recently moved
Recent change
New origin Jul 2026
from AS4766 Korea Telecom
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 203.237.128.0/17 since May 2005 | AS4766 | Residential | 105 1 always on | Korean Education Network |
Network & registry
Origin network
AS18329
KR
- Name
- Sangmyung University
- Type
- Education
- Registered
- Jul 5, 2002
- Domain
- smu.ac.kr
- Industry
- Education Software
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Rotating
- First seen
- Dec 2017
- Current origin since
- Jul 2026 · 4 mo
- Origin networks
- 3
- Last change of origin
- Jul 2026
Recorded history
History
- Handoffs
- 2
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