Network · AS11951

AS11951 Medical Computer Systems

AS11951 (Medical Computer Systems) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS11951

OwnerMedical Computer Systems
KindInternet service provider
Servers, not peopleno
IPv4 addresses37,376
IPv4 ranges5
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

207.152.128.0/18
209.50.192.0/19
205.147.160.0/19
66.186.128.0/20
204.152.42.0/23

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS11951 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 AS11951

Is AS11951 a datacenter or VPN network?

AS11951 (Medical Computer Systems) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS11951?

AS11951 is registered to Medical Computer Systems. It announces about 37,376 IPv4 addresses.

How do I detect traffic from AS11951?

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.