Network · AS21559

AS21559 OSNET Wireless

AS21559 (OSNET Wireless) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21559

OwnerOSNET Wireless
KindInternet service provider
Servers, not peopleno
IPv4 addresses31,488
IPv4 ranges44
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

38.2.160.0/19
38.107.88.0/21
200.5.16.0/21
192.254.96.0/21
72.46.156.0/22
38.87.232.0/22
192.254.104.0/22
154.64.208.0/22
74.119.26.0/23
69.24.198.0/23
67.206.204.0/23
67.206.200.0/23

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

Check an IP address →

Detect it in code

Spot AS21559 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 AS21559

Is AS21559 a datacenter or VPN network?

AS21559 (OSNET Wireless) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21559?

AS21559 is registered to OSNET Wireless. It announces about 31,488 IPv4 addresses.

How do I detect traffic from AS21559?

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.