Network · AS25612

AS25612 DSL EXPRESS

AS25612 (DSL EXPRESS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS25612

OwnerDSL EXPRESS
KindInternet service provider
Servers, not peopleno
IPv4 addresses12,032
IPv4 ranges10
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

64.238.16.0/20
209.150.16.0/21
209.150.0.0/21
209.150.8.0/22
209.150.24.0/22
209.150.28.0/23
209.150.14.0/23
72.0.107.0/24
66.251.197.0/24
209.150.13.0/24

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

Check an IP address →

Detect it in code

Spot AS25612 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 AS25612

Is AS25612 a datacenter or VPN network?

AS25612 (DSL EXPRESS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS25612?

AS25612 is registered to DSL EXPRESS. It announces about 12,032 IPv4 addresses.

How do I detect traffic from AS25612?

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.