Network check
ASN
AS33503
- OwnerMedical College of Wisconsin
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses65,536
- IPv4 ranges1
- IPv6 ranges1
Risk score0
Nothing suspicious found.
Network · AS33503
AS33503 Medical College of Wisconsin
AS33503 (Medical College of Wisconsin) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Detect it in code
Spot AS33503 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 AS33503
Is AS33503 a datacenter or VPN network?
AS33503 (Medical College of Wisconsin) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
Who owns AS33503?
AS33503 is registered to Medical College of Wisconsin. It announces about 65,536 IPv4 addresses.
How do I detect traffic from AS33503?
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.