Network · AS21573

AS21573 HealthPartners

AS21573 (HealthPartners) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21573

OwnerHealthPartners
KindInternet service provider
Servers, not peopleno
IPv4 addresses4,352
IPv4 ranges5
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

198.153.8.0/21
198.174.108.0/22
198.175.196.0/23
198.175.194.0/23
206.146.129.0/24

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

Check an IP address →

Detect it in code

Spot AS21573 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 AS21573

Is AS21573 a datacenter or VPN network?

AS21573 (HealthPartners) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21573?

AS21573 is registered to HealthPartners. It announces about 4,352 IPv4 addresses.

How do I detect traffic from AS21573?

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.