Data as of Nov 8, 2026
133.24.248.0/23
No anonymizer space · no proxy exits in 30 daysYamagata University · space held by Japan Network Information Center
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 133.24.0.0/16 since Sep 2016 | AS131159 | Business | 21 | Japan Network Information Center |
Network & registry
Origin network
AS131159
JP
- Name
- Yamagata University
- Type
- Education
- Registered
- Oct 3, 2008
- Domain
- yamagata-u.ac.jp
- Website
- www.yamagata-u.ac.jp/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Covering aggregate above, the prefix's own history below
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2025
- Current origin since
- Dec 2025 · 10 mo
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 133.24.0.0/16 | AS131159 | /24 | APNIC | RPKI valid |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS131159 | JPIRR | Yamagata University | MAINT-AS131159 | Jul 15, 2026 |
Whois
Registration for this announcement
- Range
- 133.
0. 0. 0/ 8 - Netname
- JPNIC-NET-JP-ERX
- Registrant
- Japan Network Information Center
- Registrant country
- JP
- Organization
- Japan Network Information Center
- Org country
- JP
- Type
- ALLOCATED PORTABLE
- Created
- Not stated by the registry
- Updated
- Nov 1, 2022
- Maintainer
- APNIC-HM
- RIR
- APNIC
- Country
- JP
- Delegated
- Mar 1, 1997
- Status
- assigned
Report abuse
Abuse contact
- hostmaster@
nic. ad. jp - Name
- ABUSE JPNICJP
- Handle
- AJ382-AP