Network · AS56423

AS56423 FOP Lisovskiy Dmitro Sergiyovich

AS56423 (FOP Lisovskiy Dmitro Sergiyovich) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS56423

OwnerFOP Lisovskiy Dmitro Sergiyovich
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,536
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

91.225.140.0/22
185.15.6.0/23

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

Check an IP address →

Detect it in code

Spot AS56423 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 AS56423

Is AS56423 a datacenter or VPN network?

AS56423 (FOP Lisovskiy Dmitro Sergiyovich) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS56423?

AS56423 is registered to FOP Lisovskiy Dmitro Sergiyovich. It announces about 1,536 IPv4 addresses.

How do I detect traffic from AS56423?

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.