Network · AS31770

AS31770 Ann & Robert H. Lurie Children's Hospital of Chicago

AS31770 (Ann & Robert H. Lurie Children's Hospital of Chicago) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS31770

  • OwnerAnn & Robert H. Lurie Children's Hospi
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses2,304
  • IPv4 ranges7
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 199.125.30.0/23
  • 199.125.16.0/23
  • 199.125.20.0/24
  • 199.125.18.0/24
  • 192.206.216.0/24
  • 192.206.212.0/24
  • 192.206.211.0/24

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

Check an IP address →

Detect it in code

Spot AS31770 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 AS31770

Is AS31770 a datacenter or VPN network?

AS31770 (Ann & Robert H. Lurie Children's Hospital of Chicago) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS31770?

AS31770 is registered to Ann & Robert H. Lurie Children's Hospital of Chicago. It announces about 2,304 IPv4 addresses.

How do I detect traffic from AS31770?

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.