Network · AS198551

AS198551 REZOCEAN SAS

AS198551 (REZOCEAN SAS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS198551

  • OwnerREZOCEAN SAS
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses16,384
  • IPv4 ranges14
  • IPv6 ranges2
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 212.84.56.0/21
  • 130.93.184.0/21
  • 185.76.0.0/22
  • 185.238.36.0/22
  • 185.234.140.0/22
  • 185.226.16.0/22
  • 185.218.32.0/22
  • 185.208.60.0/22
  • 185.206.116.0/22
  • 185.204.208.0/22
  • 185.204.204.0/22
  • 185.200.144.0/22

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

Check an IP address →

Detect it in code

Spot AS198551 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 AS198551

Is AS198551 a datacenter or VPN network?

AS198551 (REZOCEAN SAS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS198551?

AS198551 is registered to REZOCEAN SAS. It announces about 16,384 IPv4 addresses.

How do I detect traffic from AS198551?

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.