Network · AS18267

AS18267 Doshisha University

AS18267 (Doshisha University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS18267

OwnerDoshisha University
KindInternet service provider
Servers, not peopleno
IPv4 addresses20,480
IPv4 ranges2
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

202.23.128.0/18
202.11.192.0/20

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.

Check an IP address →

Detect it in code

Spot AS18267 traffic at signup.

Send the visitor's IP. The response includes the ASN, the owner and flags.hosting.

curl https://veqen-app.com/v1/ip/check \
  -H "Authorization: Bearer $VEQEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ip": "203.0.113.7"}'

import os, requests

r = requests.post(
    "https://veqen-app.com/v1/ip/check",
    headers={"Authorization": f"Bearer {os.environ['VEQEN_API_KEY']}"},
    json={"ip": "203.0.113.7"},
    timeout=10,
)
result = r.json()
print(result["risk"]["verdict"], result["risk"]["reasons"])

const res = await fetch("https://veqen-app.com/v1/ip/check", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.VEQEN_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({"ip": "203.0.113.7"}),
});
const result = await res.json();
console.log(result.risk.verdict, result.risk.reasons);

Questions

About AS18267

Is AS18267 a datacenter or VPN network?

AS18267 (Doshisha University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS18267?

AS18267 is registered to Doshisha University. It announces about 20,480 IPv4 addresses.

How do I detect traffic from AS18267?

Call the Veqen IP check with the visitor's address. The response includes the ASN, the owner and whether the network is a datacenter, VPN network, relay or ISP.