Network check
ASN
AS203313
- OwnerOldNET Krzysztof Cukierski
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses512
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS203313
AS203313 OldNET Krzysztof Cukierski
AS203313 (OldNET Krzysztof Cukierski) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS203313 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 AS203313
Is AS203313 a datacenter or VPN network?
AS203313 (OldNET Krzysztof Cukierski) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS203313?
AS203313 is registered to OldNET Krzysztof Cukierski. It announces about 512 IPv4 addresses.
How do I detect traffic from AS203313?
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.