Network · AS19551

AS19551 Incapsula Inc

AS19551 (Incapsula Inc) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS19551

OwnerIncapsula Inc
KindInternet service provider
Servers, not peopleno
IPv4 addresses233,472
IPv4 ranges209
IPv6 ranges124

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

45.223.64.0/18
45.60.64.0/19
45.60.128.0/19
45.60.0.0/19
45.223.128.0/19
107.154.160.0/19
45.60.96.0/20
45.60.240.0/20
45.60.176.0/20
45.223.48.0/20
45.223.160.0/20
45.223.16.0/20

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

Check an IP address →

Detect it in code

Spot AS19551 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 AS19551

Is AS19551 a datacenter or VPN network?

AS19551 (Incapsula Inc) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS19551?

AS19551 is registered to Incapsula Inc. It announces about 233,472 IPv4 addresses.

How do I detect traffic from AS19551?

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.