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Organization

The University of Tokyo

IPv4 addresses
200,704
CIDR ranges
4
Category
academic
BGP prefixes announced
4

Reputation · trust score

A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.

71/100
Moderate
How this score is built

Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →

The University of Tokyo — global IP footprint

Cities where The University of Tokyo has measurable IPv4 allocation. Click any dot to open that city's page. Size and color scale with IP count.

Countries served by The University of Tokyo

Every country where this organization has IPv4 allocations, ranked by IPs held.

ASNs owned by The University of Tokyo

ASNNameIPsPrefixesCountry
AS2501 The University of Tokyo 200.7K 4 JP

Largest CIDR ranges

CIDRIPsPTR DensityASNCountryStateCity
130.69.0.0/16 65.5K
2.5%
AS2501 JP Tokyo Yanaka
133.11.0.0/16 65.5K
15.3%
AS2501 JP Tokyo Koishikawa
157.82.0.0/16 65.5K
21.1%
AS2501 JP Tokyo Tokyo
192.51.208.0/20 4.1K
0.3%
AS2501 JP Tokyo Matsubara

Frequently Asked Questions

How many IP addresses does The University of Tokyo own?

The University of Tokyo controls 200.7K IPv4 addresses distributed across 4 CIDR ranges. The organization is registered in Japan.

What ASNs does The University of Tokyo operate?

The University of Tokyo operates 1 Autonomous System. Each ASN represents an independently routed network that The University of Tokyo manages for internet traffic delivery.

What type of organization is The University of Tokyo?

The University of Tokyo is categorized as academic. This classification is based on the organization's primary use of its IP address allocations.

Last updated: 2026-07-27 00:55:31 UTC
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