Network · AS5133

AS5133 DoD Network Information Center

AS5133 (DoD Network Information Center) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS5133

  • OwnerDoD Network Information Center
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses23,808
  • IPv4 ranges11
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 163.249.128.0/19
  • 163.249.112.0/20
  • 163.249.32.0/21
  • 163.249.232.0/21
  • 163.249.160.0/21
  • 163.249.104.0/21
  • 163.249.168.0/22
  • 163.249.100.0/22
  • 206.39.200.0/23
  • 163.249.8.0/23
  • 163.249.11.0/24

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

Check an IP address →

Detect it in code

Spot AS5133 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 AS5133

Is AS5133 a datacenter or VPN network?

AS5133 (DoD Network Information Center) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS5133?

AS5133 is registered to DoD Network Information Center. It announces about 23,808 IPv4 addresses.

How do I detect traffic from AS5133?

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.