Data as of Nov 4, 2026
103.37.89.0/24
No anonymizer space · no proxy exits in 30 daysDodo K.K. · space held by Network Research Laboratory, Graduate School of Science and Engineering, Hosei University
Network & registry
Registry
Holder
- Organization
- Network Research Laboratory, Graduate School of Science and Engineering, Hosei University
- Range
- 103.
37. 88. 0/ 23 - Registration type
- ALLOCATED PORTABLE
Origin network
AS45691
JP
- Name
- Dodo K.K.
- Type
- Internet provider
- Registered
- Apr 2, 2009
- Domain
- dodo.ad.jp
- Website
- dodo.ad.jp/
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Reactivated
- First seen
- Apr 2023
- Current origin since
- Dec 2024 · 1.9 yr
- Origin networks
- 2
- Last change of origin
- Dec 2024
Recorded history
History
- Handoffs
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 103.37.88.0/23 | AS45691 | /24 | APNIC | RPKI valid |
| 103.37.88.0/23 | AS63796 | /24 | APNIC | Another network |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS45691 | JPIRR | Hosei.Next Network Research Laboratory | MAINT-AS45691 | Jan 6, 2026 |
Whois
Registration for this announcement
- Range
- 103.
37. 88. 0/ 23 - Netname
- NEXTNETNOC-CIDR-BLK-JP
- Registrant
- Next Network Research Laboratory, Graduate School of Science and Engineering, Hosei University
- Registrant country
- JP
- Organization
- Next Network Research Laboratory, Graduate School of Science and Engineering, Hosei University
- Org country
- JP
- Created
- Not stated by the registry
- Updated
- Jun 8, 2023
- RIR
- APNIC
- Country
- JP
- Delegated
- Nov 10, 2022
- Status
- assigned
Report abuse
Abuse contact
- abuse@
biz. dodo. ad. jp