Network check
ASN
AS4539
- OwnerSchweitzer Engineering Laboratories, I
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses1,024
- IPv4 ranges1
- IPv6 ranges0
Risk score0
Nothing suspicious found.
Network · AS4539
AS4539 Schweitzer Engineering Laboratories, Inc.
AS4539 (Schweitzer Engineering Laboratories, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS4539 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 AS4539
Is AS4539 a datacenter or VPN network?
AS4539 (Schweitzer Engineering Laboratories, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS4539?
AS4539 is registered to Schweitzer Engineering Laboratories, Inc.. It announces about 1,024 IPv4 addresses.
How do I detect traffic from AS4539?
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.