Network · AS57613

AS57613 Piotr Lewandowski trading as ESNET S.C.

AS57613 (Piotr Lewandowski trading as ESNET S.C.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS57613

  • OwnerPiotr Lewandowski trading as ESNET S.C
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses1,792
  • IPv4 ranges3
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 176.103.32.0/22
  • 176.103.36.0/23
  • 176.103.39.0/24

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

Check an IP address →

Detect it in code

Spot AS57613 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 AS57613

Is AS57613 a datacenter or VPN network?

AS57613 (Piotr Lewandowski trading as ESNET S.C.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS57613?

AS57613 is registered to Piotr Lewandowski trading as ESNET S.C.. It announces about 1,792 IPv4 addresses.

How do I detect traffic from AS57613?

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.