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Autonomous System

AS18267

Doshisha University

Announced IPs
20,480
CIDR prefixes
2
ASN
AS18267

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 →

Top CIDR ranges

CIDRIPsPTR DensityOrganizationCountryStateCity
202.23.128.0/18 16.4K
0.5%
Doshisha University JP
202.11.192.0/20 4.1K
0.5%
Doshisha University JP Kyoto Kyoto

BGP Announced Prefixes

Live BGP anomalies →

Prefixes AS18267 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.

PrefixAnnouncement samplesLast seen
202.23.128.0/18 4,197 2026-07-26 23:15:25
202.11.192.0/20 4,175 2026-07-26 23:15:25

Frequently Asked Questions

What is AS18267?

AS18267 is an Autonomous System Number assigned to Doshisha University. 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 AS18267 announce?

AS18267 announces 20.5K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in Japan.

Who operates AS18267?

AS18267 is operated by Doshisha University. The organization is based in Japan. You can view all IP ranges and related ASNs on the organization page.

What country is AS18267 registered in?

AS18267 is registered in Japan. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.

Last updated: 2026-07-26 23:40:32 UTC
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