Network · AS43773

AS43773 PE Konstantin Vladimirovich Kravchenko

AS43773 (PE Konstantin Vladimirovich Kravchenko) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS43773

OwnerPE Konstantin Vladimirovich Kravchenko
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,280
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

91.225.138.0/23
91.200.40.0/23
91.200.43.0/24

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

Check an IP address →

Detect it in code

Spot AS43773 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 AS43773

Is AS43773 a datacenter or VPN network?

AS43773 (PE Konstantin Vladimirovich Kravchenko) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS43773?

AS43773 is registered to PE Konstantin Vladimirovich Kravchenko. It announces about 1,280 IPv4 addresses.

How do I detect traffic from AS43773?

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.