Network · AS198112

AS198112 Leszek Checik trading as PROSAT S.C.

AS198112 (Leszek Checik trading as PROSAT S.C.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS198112

  • OwnerLeszek Checik trading as PROSAT S.C.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses1,536
  • IPv4 ranges2
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 91.233.232.0/22
  • 91.233.236.0/23

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

Check an IP address →

Detect it in code

Spot AS198112 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 AS198112

Is AS198112 a datacenter or VPN network?

AS198112 (Leszek Checik trading as PROSAT S.C.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS198112?

AS198112 is registered to Leszek Checik trading as PROSAT S.C.. It announces about 1,536 IPv4 addresses.

How do I detect traffic from AS198112?

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.