Network · AS12761

AS12761 COLT Technology Services Group Limited

AS12761 (COLT Technology Services Group Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS12761

OwnerCOLT Technology Services Group Limited
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,536
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

217.111.164.0/22
193.118.164.0/24
193.118.162.0/24

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

Check an IP address →

Detect it in code

Spot AS12761 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 AS12761

Is AS12761 a datacenter or VPN network?

AS12761 (COLT Technology Services Group Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS12761?

AS12761 is registered to COLT Technology Services Group Limited. It announces about 1,536 IPv4 addresses.

How do I detect traffic from AS12761?

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.