Data as of Nov 6, 2026
1.233.236.0/23
No anonymizer space · no proxy exits in 30 daysYonsei University
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | RPKI |
|---|---|---|---|---|
| 1.232.0.0/13 since Aug 2010 | AS9318 | Residential | 2,672 209 always on | |
| 1.224.0.0/11 since Dec 2016 | AS9318 | Residential | 10,356 827 always on |
Registrations in this block
The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 1.233.236.0/24 | 256 | YONSEI-NET | Yonsei University | ALLOCATED PORTABLE | — | hostmaster@ |
| 1.233.237.0/24 | 256 | YONSEI-NET | Yonsei University | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
Registry
Holder
- Organization
- Not stated by the registry
Origin network
AS4665
KR
- Name
- Yonsei University
- Type
- Education
- Registered
- Dec 17, 2004
- Domain
- yonsei.ac.kr
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2013
- Current origin since
- Feb 2013 · 14 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS4665 | RADB | AS4665 | MAINT-AS9318 | Nov 13, 2023 |
Whois
Registration for this announcement
1.233.236.0/23 spans several registrations: 2 records are listed under Registrations.
- Registrant country
- AU
- RIR
- APNIC
- Country
- KR
- Delegated
- Jul 19, 2010
- Status
- assigned