Network · AS21992

AS21992 Ontario Health

AS21992 (Ontario Health) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21992

  • OwnerOntario Health
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses18,944
  • IPv4 ranges17
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 76.75.128.0/20
  • 69.42.176.0/20
  • 76.75.184.0/21
  • 76.75.168.0/21
  • 76.75.164.0/22
  • 76.75.144.0/22
  • 205.210.180.0/22
  • 76.75.180.0/23
  • 76.75.176.0/23
  • 76.75.160.0/23
  • 76.75.152.0/23
  • 76.75.178.0/24

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

Check an IP address →

Detect it in code

Spot AS21992 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 AS21992

Is AS21992 a datacenter or VPN network?

AS21992 (Ontario Health) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21992?

AS21992 is registered to Ontario Health. It announces about 18,944 IPv4 addresses.

How do I detect traffic from AS21992?

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.