Network · AS15119

AS15119 Southern Illinois University

AS15119 (Southern Illinois University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS15119

OwnerSouthern Illinois University
KindInternet service provider
Servers, not peopleno
IPv4 addresses61,440
IPv4 ranges4
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

131.230.0.0/17
131.230.128.0/18
131.230.192.0/19
131.230.240.0/20

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS15119 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 AS15119

Is AS15119 a datacenter or VPN network?

AS15119 (Southern Illinois University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS15119?

AS15119 is registered to Southern Illinois University. It announces about 61,440 IPv4 addresses.

How do I detect traffic from AS15119?

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.