Network · AS20670

AS20670 Sylwester Kus trading as InfaNET

AS20670 (Sylwester Kus trading as InfaNET) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS20670

OwnerSylwester Kus trading as InfaNET
KindInternet service provider
Servers, not peopleno
IPv4 addresses5,120
IPv4 ranges4
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

31.131.168.0/21
91.210.76.0/22
45.93.228.0/22
185.37.32.0/22

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

Check an IP address →

Detect it in code

Spot AS20670 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 AS20670

Is AS20670 a datacenter or VPN network?

AS20670 (Sylwester Kus trading as InfaNET) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS20670?

AS20670 is registered to Sylwester Kus trading as InfaNET. It announces about 5,120 IPv4 addresses.

How do I detect traffic from AS20670?

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.