Data as of Nov 3, 2026
157.7.0.0/19
No anonymizer space · no proxy exits in 30 daysResearch Organization of Information and Systems, National Institute of Informatics · space held by Radiation Effects Research Foundation
Network & 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 this prefix
Summary
Routing history
- Pattern
- Rotating
- First seen
- Feb 2012
- Current origin since
- Mar 2023 · 3.6 yr
- Origin networks
- 3
- Last change of origin
- Mar 2023
Recorded history
History
- Handoffs
- 2
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS2907 | JPIRR | Housyasen | MAINT-AS2907 | Mar 2, 2026 |
Whois
Registration for this announcement
- Range
- 157.7.0.0/19
- Netname
- RERFNET-CIDR-BLK-JP
- Registrant
- Radiation Effects Research Foundation
- Registrant country
- JP
- Organization
- Radiation Effects Research Foundation
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Oct 8, 2020
- RIR
- APNIC
- Country
- JP
- Delegated
- Aug 14, 1992
- Status
- assigned