Data as of Nov 5, 2026
133.32.100.0/22
No anonymizer space · no proxy exits in 30 daysResearch Organization of Information and Systems, National Institute of Informatics · space held by Japan Network Information Center
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 |
|---|---|---|---|---|---|---|
| 133.0.0.0/8 | 16,777,216 | JPNIC-NET-JP-ERX | Japan Network Information Center | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
IPv4 market
Holder
- Organization
- Japan Network Information Center
- Range
- 133.
0. 0. 0/ 8 - Registration type
- ALLOCATED PORTABLE
Origin network
AS2907
JP
- Name
- Research Organization of Information and Systems, National Institute of Informatics
- Type
- Education
- Registered
- Aug 1, 2002
- Domain
- sinet.ad.jp
- Website
- www.sinet.ad.jp/
- Industry
- Internet Service Provider (ISP)
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Feb 2021
- Current origin since
- Feb 2021 · 5.8 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2907 | JPIRR | Kobe Design University | MAINT-AS2907 | Jan 5, 2026 |
Whois
Registration for this announcement
- Range
- 133.
32. 100. 0/ 22 - Netname
- KDU-NET-CIDR-BLK-JP
- Registrant
- Kobe Design University
- Registrant country
- JP
- Organization
- Kobe Design University
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Oct 26, 2022
- RIR
- APNIC
- Country
- JP
- Delegated
- Mar 1, 1997
- Status
- assigned