Network check
ASN
AS204536
- OwnerTSFY Ltd
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses1,024
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS204536
AS204536 TSFY Ltd
AS204536 (TSFY Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS204536 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 AS204536
Is AS204536 a datacenter or VPN network?
AS204536 (TSFY Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS204536?
AS204536 is registered to TSFY Ltd. It announces about 1,024 IPv4 addresses.
How do I detect traffic from AS204536?
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.