Network · AS51918

AS51918 Cerberus Networks Ltd

AS51918 (Cerberus Networks Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS51918

OwnerCerberus Networks Ltd
KindInternet service provider
Servers, not peopleno
IPv4 addresses19,712
IPv4 ranges8
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

83.151.224.0/19
46.37.32.0/19
185.14.208.0/22
185.117.236.0/22
77.73.170.0/23
92.119.254.0/24
77.73.172.0/24
195.10.232.0/24

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

Check an IP address →

Detect it in code

Spot AS51918 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 AS51918

Is AS51918 a datacenter or VPN network?

AS51918 (Cerberus Networks Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS51918?

AS51918 is registered to Cerberus Networks Ltd. It announces about 19,712 IPv4 addresses.

How do I detect traffic from AS51918?

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.