Network · AS15412

AS15412 FLAG TELECOM UK LIMITED

AS15412 (FLAG TELECOM UK LIMITED) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS15412

  • OwnerFLAG TELECOM UK LIMITED
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses32,768
  • IPv4 ranges20
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 62.216.128.0/19
  • 80.81.80.0/20
  • 80.77.0.0/20
  • 80.81.64.0/21
  • 203.79.40.0/21
  • 85.95.24.0/22
  • 80.81.72.0/22
  • 45.125.188.0/22
  • 43.248.216.0/22
  • 203.79.36.0/22
  • 103.8.84.0/22
  • 103.5.160.0/22

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

Check an IP address →

Detect it in code

Spot AS15412 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 AS15412

Is AS15412 a datacenter or VPN network?

AS15412 (FLAG TELECOM UK LIMITED) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS15412?

AS15412 is registered to FLAG TELECOM UK LIMITED. It announces about 32,768 IPv4 addresses.

How do I detect traffic from AS15412?

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.