Network · AS823

AS823 University of Western Ontario

AS823 (University of Western Ontario) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS823

OwnerUniversity of Western Ontario
KindInternet service provider
Servers, not peopleno
IPv4 addresses65,792
IPv4 ranges2
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

129.100.0.0/16
205.189.1.0/24

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

Check an IP address →

Detect it in code

Spot AS823 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 AS823

Is AS823 a datacenter or VPN network?

AS823 (University of Western Ontario) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS823?

AS823 is registered to University of Western Ontario. It announces about 65,792 IPv4 addresses.

How do I detect traffic from AS823?

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.