Autonomous system
AS2907 SINET-AS Research Organization of Information and Systems, National Institute of Informatics
Unclassified APNIC
Summary
SINET (National Institute of Informatics)
education research nren
SINET (SINET-AS) — Japan's Science Information Network, the national research and education backbone operated by the National Institute of Informatics (NII).
What it's used for
- Connecting Japan's universities and research institutions to each other and internationally at high bandwidth.
Notable
- An IP here is an academic/research network address, classified education rather than commercial hosting.
- SINET links hundreds of Japanese universities and labs; small Japanese academic ASNs commonly peer into it.
Interesting
- SINET has long doubled as a testbed for advanced networking, carrying some of Japan's earliest high-speed research links.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Interconnection
Peering at a glance
Internet exchanges
Recorded at 5 exchanges in 1 country, largest first.
| Exchange | Location | Their address |
|---|---|---|
| BroadBand Internet eXchange Tokyo | Tokyo, Japan | 101.203.89.206 |
| JPIX Tokyo | Tokyo, Japan | 210.171.224.150 |
| BroadBand Internet eXchange Osaka | Osaka, Japan | 218.100.9.134 |
| Equinix Internet Exchange Tokyo | Tokyo, Japan | 2001:de8:5::2907:1 |
| JPIX Osaka | Osaka, Japan | 103.246.232.150 |
Transit providers
14 upstream, 96 downstream and 161 adjacent networks observed; most-used upstreams first.
Exchange presence is recorded rather than inferred: the directory collected by Packet Clearing House (https://www.pch.net/ixp/data) on 2026-10-11, licensed CC BY-NC-SA 3.0. Transit is inferred from observed BGP paths, never declared by either party.
Address space
Summary
IPv4 576 prefixes · 8.77M addresses IPv6 2 prefixes
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 578 |
Registry
Allocation record
- Registry
- APNIC
- Handle
AS2907- Registry name
- SINET-AS
- Abuse contact
- hostmaster@nic.ad.jp
- Registered
- 2002-08-01
- Last changed
- 2008-11-28
- Allocation
- allocated
Routing security
RPKI and IRR
- RPKI
- 6% valid · 41 valid, 627 with no ROA
- ROAs
- 31 authorising AS2907
- ASPA
- no ASPA record
- IRR
- 0% registered · 0 of 668 announcements 31 other origin
- Route objects
- 0 naming AS2907
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
Spamhaus DROP
Not on ASN-DROP The network as a whole is not listed.
No DROP prefixes None of its announced space is on the DROP prefix list.
Spamhaus DROP ("Don't Route Or Peer") lists space and networks run by, or hijacked for, spam and cybercrime operations: 431 networks and 1,768 prefixes, as published 2026-10-12. A short, high-confidence list, so a match is worth taking seriously, and absence from it says little on its own.
FBI IC3
No IC3 indicators Nothing from the FBI IC3 feed.
IC3 threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere