Network check
ASN
AS397027
- OwnerBlock Line Systems, LLC
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses2,048
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS397027
AS397027 Block Line Systems, LLC
AS397027 (Block Line Systems, LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS397027 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 AS397027
Is AS397027 a datacenter or VPN network?
AS397027 (Block Line Systems, LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS397027?
AS397027 is registered to Block Line Systems, LLC. It announces about 2,048 IPv4 addresses.
How do I detect traffic from AS397027?
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.