Data as of Nov 7, 2026
192.174.140.0/24
No anonymizer space · no proxy exits in 30 daysResearch Organization of Information and Systems, National Institute of Informatics
Registrations in this block
The registry's network records over this block, widest first, each under its parent.
| Range | Addresses | Netname | Holder | Type | Created | Abuse contact |
|---|---|---|---|---|---|---|
| 192.174.140.0/24 | 256 | JPNIC-NET-JP | Japan Network Information Center | ASSIGNED PORTABLE | — | hostmaster@ |
Network & registry
Announced by
Covering announcement 192.174.128.0/17
- Prefix
- 192.174.128.0/17
- Announced by
- AS2907 Research Organization of Information and Systems, National Institute of Informatics
- Type
- Business
- Proxy exits
- 13
- RPKI
- RPKI valid
- Netname
- SINET-CIDR-BLK-JP
- Registrant
- Research Organization of Information and Systems, National Institute of Informatics
- RIR
- APNIC
Registry
Holder
- Organization
- Not stated by the registry
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 192.174.128.0/17
192.174.128.0/17
Routing history
- Pattern
- Stable
- First seen
- Jul 2007
- Current origin since
- Jul 2024 · 2.3 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 192.174.128.0/17 | AS2907 | /32 | APNIC | RPKI valid |
IRR
Route objects on 192.174.128.0/17
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2907 | JPIRR | NACSIS | MAINT-AS2907 | Mar 2, 2026 |
Whois
Registration for this announcement
- Range
- 192.
174. 128. 0/ 17 - Netname
- SINET-CIDR-BLK-JP
- Registrant
- Research Organization of Information and Systems, National Institute of Informatics
- Registrant country
- JP
- Organization
- Research Organization of Information and Systems, National Institute of Informatics
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Jun 24, 2024
- RIR
- APNIC
- Country
- JP
- Delegated
- Jul 17, 1992
- Status
- assigned
Report abuse
Abuse contact
- abuse@
sinet. ad. jp