Network · AS9

AS9 Carnegie Mellon University

AS9 (Carnegie Mellon University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS9

OwnerCarnegie Mellon University
KindInternet service provider
Servers, not peopleno
IPv4 addresses133,632
IPv4 ranges8
IPv6 ranges16

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

128.237.0.0/16
128.2.0.0/16
204.194.28.0/22
209.129.244.0/23
192.80.210.0/24
192.58.107.0/24
192.5.146.0/24
192.12.32.0/24

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

Check an IP address →

Detect it in code

Spot AS9 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 AS9

Is AS9 a datacenter or VPN network?

AS9 (Carnegie Mellon University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS9?

AS9 is registered to Carnegie Mellon University. It announces about 133,632 IPv4 addresses.

How do I detect traffic from AS9?

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.