Network check
ASN
AS103
- OwnerNorthwestern University
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses149,504
- IPv4 ranges22
- IPv6 ranges1
Risk score0
Nothing suspicious found.
Network · AS103
AS103 (Northwestern University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
AS103
Nothing suspicious found.
129.105.0.0/16165.124.0.0/17199.74.64.0/18165.124.192.0/19165.124.128.0/19165.124.240.0/20165.124.160.0/20165.124.224.0/21165.124.176.0/218.30.248.0/22165.124.232.0/228.28.178.0/23Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.
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);AS103 (Northwestern University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
AS103 is registered to Northwestern University. It announces about 149,504 IPv4 addresses.
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.