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Autonomous System

AS2513

Japan Science and Technology Agency

Announced IPs
65,536
CIDR prefixes
1
ASN
AS2513

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.

65/100
Moderate
How this score is built

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

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
160.74.0.0/16 65.5K
0.1%
Japan Science and Technology Agency JP

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS2513 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
160.74.0.0/16 4,392 2026-07-27 00:26:55

Frequently Asked Questions

What is AS2513?

AS2513 is an Autonomous System Number assigned to Japan Science and Technology Agency. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).

How many IP addresses does AS2513 announce?

AS2513 announces 65.5K IPv4 addresses distributed across 1 routed CIDR prefixes. The network is registered in Japan.

Who operates AS2513?

AS2513 is operated by Japan Science and Technology Agency. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.

What country is AS2513 registered in?

AS2513 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-27 01:10:30 UTC
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