Network · AS37501

AS37501 University of the Free State

AS37501 (University of the Free State) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS37501

OwnerUniversity of the Free State
KindInternet service provider
Servers, not peopleno
IPv4 addresses198,656
IPv4 ranges6
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

196.254.0.0/15
146.182.0.0/16
196.21.180.0/22
196.21.158.0/23
196.21.40.0/24
196.21.184.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.

Check an IP address →

Detect it in code

Spot AS37501 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 AS37501

Is AS37501 a datacenter or VPN network?

AS37501 (University of the Free State) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS37501?

AS37501 is registered to University of the Free State. It announces about 198,656 IPv4 addresses.

How do I detect traffic from AS37501?

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.