Network · AS33903

AS33903 Closed Joint Stock Company CROC incorporated

AS33903 (Closed Joint Stock Company CROC incorporated) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS33903

  • OwnerClosed Joint Stock Company CROC incorp
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses256
  • IPv4 ranges1
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 195.38.23.0/24

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

Check an IP address →

Detect it in code

Spot AS33903 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 AS33903

Is AS33903 a datacenter or VPN network?

AS33903 (Closed Joint Stock Company CROC incorporated) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS33903?

AS33903 is registered to Closed Joint Stock Company CROC incorporated. It announces about 256 IPv4 addresses.

How do I detect traffic from AS33903?

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.