Network · AS11540

AS11540 Research Triangle Institute

AS11540 (Research Triangle Institute) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS11540

OwnerResearch Triangle Institute
KindInternet service provider
Servers, not peopleno
IPv4 addresses65,792
IPv4 ranges2
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

152.5.0.0/16
192.154.54.0/24

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

Check an IP address →

Detect it in code

Spot AS11540 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 AS11540

Is AS11540 a datacenter or VPN network?

AS11540 (Research Triangle Institute) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS11540?

AS11540 is registered to Research Triangle Institute. It announces about 65,792 IPv4 addresses.

How do I detect traffic from AS11540?

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.