Data as of Nov 5, 2026
133.25.0.0/17
No anonymizer space · no proxy exits in 30 daysHosei University · space held by Japan Network Information Center
Announcements
Less specific
Covering announcements
| Prefix | Origin | Type | Proxy exits | Holder | RPKI |
|---|---|---|---|---|---|
| 133.25.0.0/16 since Oct 2010 | AS55379 | Business | 9 | Japan Network Information Center |
Network & registry
Origin network
AS55379
JP
- Name
- Hosei University
- Type
- Education
- Registered
- Jan 18, 2010
- Domain
- hosei.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
- Jul 2011
- Current origin since
- Jul 2011 · 15 yr
- Origin networks
- 1
IRR
Route objects on the exact prefix
IRR inside
Route objects inside
| Prefix | Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|---|
| 133.25.0.0/22 | AS55379 | RADB | Hosei University | MAINT-AS7684 | Nov 13, 2023 |
| 133.25.0.0/22 | AS55379 | JPIRR | Hosei University | MAINT-AS7684 | May 1, 2026 |
| 133.25.0.0/24 | AS55379 | RADB | PACNET (proxy-registered route object) | MAINT-AS4637 | Nov 13, 2023 |
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