Network · AS263336

AS263336 EXTREME WI

AS263336 (EXTREME WI) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS263336

  • OwnerEXTREME WI
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses2,048
  • IPv4 ranges1
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 191.36.168.0/21

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

Check an IP address →

Detect it in code

Spot AS263336 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 AS263336

Is AS263336 a datacenter or VPN network?

AS263336 (EXTREME WI) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS263336?

AS263336 is registered to EXTREME WI. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS263336?

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.