Autonomous system
AS4690 WIDE-SFO WIDE Project
Unclassified ARIN
Summary
WIDE Project
research education legacy
WIDE-SFO — a network of the WIDE Project, the Japanese internet research
consortium (Widely Integrated Distributed Environment) founded in 1988 and long
associated with Jun Murai and Keio University.
What it's used for
- Internet research and experimental networking. WIDE runs testbeds, operational research infrastructure, and interconnection for Japanese universities and research groups.
- The
-SFOin the handle points at a US west-coast presence; WIDE has historically maintained international links and equipment outside Japan.
Notable
- Tiny by address count — a single /24 — which is normal for research and infrastructure ASNs where the point is the routing and the experiments, not the address volume.
- WIDE is an operator of real internet infrastructure, not just a lab: it is best known outside Japan for running the M root DNS server.
Interesting
- WIDE was central to Japan's early internet, IPv6 development, and the growth of research networking in Asia — an academic project that ended up carrying production traffic.
This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy. Source, and how to suggest an edit.
Address space
Summary
| Country | Name | Prefixes |
|---|---|---|
| JP | Japan | 2 |
Registry
Allocation record
- Registry
- ARIN
- Handle
AS4690- Registry name
- WIDE-SFO
- Last changed
- 2017-02-17
- Status
- active
Reputation
Classification and threat
Unclassified Not in the curated lists. Most of the ~80,000 allocated ASNs are not.
No IC3 indicators Nothing from the FBI IC3 feed.
Threat data is alpha. Absence of an indicator is not evidence of good behaviour, only of absence from this one feed.
Elsewhere