Network · AS19663

AS19663 CASS INFORMATION SYSTEMS

AS19663 (CASS INFORMATION SYSTEMS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS19663

OwnerCASS INFORMATION SYSTEMS
KindInternet service provider
Servers, not peopleno
IPv4 addresses512
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

192.69.141.0/24
12.147.44.0/24

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

Check an IP address →

Detect it in code

Spot AS19663 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 AS19663

Is AS19663 a datacenter or VPN network?

AS19663 (CASS INFORMATION SYSTEMS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS19663?

AS19663 is registered to CASS INFORMATION SYSTEMS. It announces about 512 IPv4 addresses.

How do I detect traffic from AS19663?

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.