Network · AS25609

AS25609 Detroit Medical Center

AS25609 (Detroit Medical Center) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS25609

OwnerDetroit Medical Center
KindInternet service provider
Servers, not peopleno
IPv4 addresses52,224
IPv4 ranges30
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

155.139.224.0/19
155.139.160.0/19
155.139.64.0/20
155.139.48.0/20
155.139.208.0/20
155.139.144.0/20
155.139.96.0/21
155.139.80.0/21
155.139.192.0/21
155.139.16.0/21
155.139.136.0/21
155.139.88.0/22

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

Check an IP address →

Detect it in code

Spot AS25609 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 AS25609

Is AS25609 a datacenter or VPN network?

AS25609 (Detroit Medical Center) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS25609?

AS25609 is registered to Detroit Medical Center. It announces about 52,224 IPv4 addresses.

How do I detect traffic from AS25609?

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.