Network · AS204666

AS204666 Jiri Tlapak

AS204666 (Jiri Tlapak) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS204666

  • OwnerJiri Tlapak
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses14,336
  • IPv4 ranges16
  • IPv6 ranges10
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 37.221.240.0/20
  • 85.255.88.0/22
  • 45.153.192.0/22
  • 185.97.24.0/22
  • 185.87.140.0/22
  • 185.64.220.0/22
  • 185.243.172.0/22
  • 185.19.0.0/22
  • 91.224.90.0/23
  • 5.59.102.0/23
  • 213.108.162.0/23
  • 185.188.100.0/23

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

Check an IP address →

Detect it in code

Spot AS204666 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 AS204666

Is AS204666 a datacenter or VPN network?

AS204666 (Jiri Tlapak) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS204666?

AS204666 is registered to Jiri Tlapak. It announces about 14,336 IPv4 addresses.

How do I detect traffic from AS204666?

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.