Data as of Nov 13, 2026
192.50.72.0/24
No anonymizer space · no proxy exits in 30 daysResearch Organization of Information and Systems, National Institute of Informatics · space held by imported inetnum object for JNIC
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 |
|---|---|---|---|---|---|---|
| 192.50.0.0/16 | 65,536 | JAPAN-INET-BLOCK1 | imported inetnum object for JNIC | ALLOCATED PORTABLE | — | hostmaster@ |
Network & registry
IPv4 market
Holder
- Organization
- imported inetnum object for JNIC
- Range
- 192.
50. 0. 0/ 16 - 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
- Apr 2008
- Current origin since
- Apr 2008 · 19 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2907 | JPIRR | EHMNET | MAINT-AS2907 | Jan 5, 2026 |
Whois
Registration for this announcement
- Range
- 192.
50. 72. 0/ 24 - Netname
- EHMNET-CIDR-BLK-JP
- Registrant
- Ehime University
- Registrant country
- JP
- Organization
- Ehime University
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Jun 22, 2007
- RIR
- APNIC
- Country
- JP
- Delegated
- Feb 21, 1989
- Status
- assigned