Network · AS518

AS518 United States Department of Defense (DoD)

AS518 (United States Department of Defense (DoD)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS518

  • OwnerUnited States Department of Defense (D
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses7,424
  • IPv4 ranges7
  • IPv6 ranges2
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 199.9.240.0/21
  • 199.9.232.0/21
  • 199.9.228.0/22
  • 199.9.180.0/22
  • 199.9.224.0/23
  • 199.9.178.0/23
  • 199.9.226.0/24

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

Check an IP address →

Detect it in code

Spot AS518 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 AS518

Is AS518 a datacenter or VPN network?

AS518 (United States Department of Defense (DoD)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS518?

AS518 is registered to United States Department of Defense (DoD). It announces about 7,424 IPv4 addresses.

How do I detect traffic from AS518?

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.