Network · AS27411

AS27411 Leaseweb USA, Inc.

AS27411 (Leaseweb USA, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS27411

OwnerLeaseweb USA, Inc.
KindInternet service provider
Servers, not peopleno
IPv4 addresses94,464
IPv4 ranges95
IPv6 ranges15

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

23.108.64.0/19
23.83.80.0/20
173.234.192.0/20
108.62.80.0/20
64.120.80.0/21
64.120.32.0/21
23.82.80.0/21
23.82.40.0/21
23.82.104.0/21
23.81.24.0/21
23.81.152.0/21
23.19.176.0/21

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

Check an IP address →

Detect it in code

Spot AS27411 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 AS27411

Is AS27411 a datacenter or VPN network?

AS27411 (Leaseweb USA, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS27411?

AS27411 is registered to Leaseweb USA, Inc.. It announces about 94,464 IPv4 addresses.

How do I detect traffic from AS27411?

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.