Network · AS39873

AS39873 Rzeszow University of Technology

AS39873 (Rzeszow University of Technology) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS39873

OwnerRzeszow University of Technology
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,024
IPv4 ranges1
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

89.188.192.0/22

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

Check an IP address →

Detect it in code

Spot AS39873 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 AS39873

Is AS39873 a datacenter or VPN network?

AS39873 (Rzeszow University of Technology) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS39873?

AS39873 is registered to Rzeszow University of Technology. It announces about 1,024 IPv4 addresses.

How do I detect traffic from AS39873?

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.