Network check
ASN
AS39311
- OwnerMainstream doo Beograd
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses256
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS39311
AS39311 Mainstream doo Beograd
AS39311 (Mainstream doo Beograd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS39311 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 AS39311
Is AS39311 a datacenter or VPN network?
AS39311 (Mainstream doo Beograd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS39311?
AS39311 is registered to Mainstream doo Beograd. It announces about 256 IPv4 addresses.
How do I detect traffic from AS39311?
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.