Network · AS25591

AS25591 BCLan LLC

AS25591 (BCLan LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS25591

OwnerBCLan LLC
KindInternet service provider
Servers, not peopleno
IPv4 addresses25,088
IPv4 ranges14
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

80.242.96.0/20
217.175.0.0/20
93.190.176.0/21
5.183.64.0/21
5.101.208.0/21
37.75.216.0/21
31.3.24.0/21
92.118.200.0/22
91.243.36.0/22
5.188.144.0/22
45.84.60.0/22
185.14.16.0/22

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

Check an IP address →

Detect it in code

Spot AS25591 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 AS25591

Is AS25591 a datacenter or VPN network?

AS25591 (BCLan LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS25591?

AS25591 is registered to BCLan LLC. It announces about 25,088 IPv4 addresses.

How do I detect traffic from AS25591?

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.