asn.dev

Autonomous system

AS2501 UTNET The University of Tokyo

Education ARIN

IPv4 addresses 201K 4 prefixes
IPv6 prefixes 16 counted as prefixes, not addresses
Countries 1 mostly JP
Flagged prefixes 0 none

Summary

The University of Tokyo

Japan · AI-generated

education university research legacy

UTNET is the campus network of the University of Tokyo (Todai), Japan's oldest and most prominent national university.

What it's used for

  • Campus, research, and administrative networking across the university's Tokyo campuses.

Notable

  • An institutional research-university network, not a commercial ISP or host. The low AS number reflects an early Japanese-internet allocation from the 1990s.

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

Full explorer
CountryNamePrefixes
JPJapan20

Registry

Allocation record

via ARIN RDAP
Registry
ARIN
Handle
AS2501
Registry name
UTnet
Last changed
2014-03-19
Status
active

Declared

PeeringDB profile

self-reported
Name
UTnet
Scope
Not Disclosed
Traffic ratio
Not Disclosed

PeeringDB records are maintained by the network operator and are not independently verified. Treat them as a statement of intent rather than of fact. For the observed and recorded view, see peering, which lists the exchanges Packet Clearing House has a port on file for.

Reputation

Classification and threat

Education University, school or national research and education network.

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

Cross-check