Network · AS21489

AS21489 The North Atlantic Treaty Organization

AS21489 (The North Atlantic Treaty Organization) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21489

OwnerThe North Atlantic Treaty Organization
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,792
IPv4 ranges4
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

185.45.52.0/22
91.223.21.0/24
193.110.130.0/24
192.101.252.0/24

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

Check an IP address →

Detect it in code

Spot AS21489 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 AS21489

Is AS21489 a datacenter or VPN network?

AS21489 (The North Atlantic Treaty Organization) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21489?

AS21489 is registered to The North Atlantic Treaty Organization. It announces about 1,792 IPv4 addresses.

How do I detect traffic from AS21489?

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.