Network · AS51396

AS51396 Pfcloud UG (haftungsbeschrankt)

AS51396 (Pfcloud UG (haftungsbeschrankt)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS51396

  • OwnerPfcloud UG (haftungsbeschrankt)
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses7,936
  • IPv4 ranges26
  • IPv6 ranges25
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 176.65.148.0/22
  • 138.249.124.0/23
  • 138.249.120.0/23
  • 94.183.174.0/24
  • 89.45.35.0/24
  • 88.214.50.0/24
  • 85.208.84.0/24
  • 77.83.39.0/24
  • 77.83.207.0/24
  • 45.144.212.0/24
  • 45.135.194.0/24
  • 45.135.193.0/24

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

Check an IP address →

Detect it in code

Spot AS51396 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 AS51396

Is AS51396 a datacenter or VPN network?

AS51396 (Pfcloud UG (haftungsbeschrankt)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS51396?

AS51396 is registered to Pfcloud UG (haftungsbeschrankt). It announces about 7,936 IPv4 addresses.

How do I detect traffic from AS51396?

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.