Network · AS266500

AS266500 SURF TELECOM S.A.

AS266500 (SURF TELECOM S.A.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS266500

OwnerSURF TELECOM S.A.
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,816
IPv4 ranges4
IPv6 ranges7

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

191.128.232.0/22
170.244.196.0/22
191.128.236.0/23
191.128.239.0/24

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

Check an IP address →

Detect it in code

Spot AS266500 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 AS266500

Is AS266500 a datacenter or VPN network?

AS266500 (SURF TELECOM S.A.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS266500?

AS266500 is registered to SURF TELECOM S.A.. It announces about 2,816 IPv4 addresses.

How do I detect traffic from AS266500?

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.