Network · AS13611

AS13611 U.S. Center For Disease Control and Prevention

AS13611 (U.S. Center For Disease Control and Prevention) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS13611

OwnerU.S. Center For Disease Control and Pr
KindInternet service provider
Servers, not peopleno
IPv4 addresses73,728
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

158.111.0.0/16
198.246.96.0/19

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

Check an IP address →

Detect it in code

Spot AS13611 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 AS13611

Is AS13611 a datacenter or VPN network?

AS13611 (U.S. Center For Disease Control and Prevention) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS13611?

AS13611 is registered to U.S. Center For Disease Control and Prevention. It announces about 73,728 IPv4 addresses.

How do I detect traffic from AS13611?

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.