Network · AS33781

AS33781 OPQ Net

AS33781 (OPQ Net) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS33781

OwnerOPQ Net
KindInternet service provider
Servers, not peopleno
IPv4 addresses5,120
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

41.75.0.0/20
196.45.164.0/22

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS33781 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 AS33781

Is AS33781 a datacenter or VPN network?

AS33781 (OPQ Net) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS33781?

AS33781 is registered to OPQ Net. It announces about 5,120 IPv4 addresses.

How do I detect traffic from AS33781?

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.