Network · AS39251

AS39251 NETGUARD LLC

AS39251 (NETGUARD LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS39251

  • OwnerNETGUARD LLC
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses22,272
  • IPv4 ranges22
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 91.92.80.0/20
  • 77.76.16.0/20
  • 91.92.96.0/21
  • 91.92.72.0/21
  • 85.130.72.0/22
  • 213.232.88.0/22
  • 185.229.252.0/22
  • 185.225.84.0/22
  • 185.163.140.0/22
  • 109.160.52.0/22
  • 91.207.190.0/23
  • 212.70.140.0/23

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

Check an IP address →

Detect it in code

Spot AS39251 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 AS39251

Is AS39251 a datacenter or VPN network?

AS39251 (NETGUARD LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS39251?

AS39251 is registered to NETGUARD LLC. It announces about 22,272 IPv4 addresses.

How do I detect traffic from AS39251?

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.