Network · AS53813

AS53813 ZSCALER, INC.

AS53813 (ZSCALER, INC.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS53813

  • OwnerZSCALER, INC.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses137,216
  • IPv4 ranges154
  • IPv6 ranges23
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 164.137.160.0/19
  • 175.107.144.0/20
  • 167.103.64.0/20
  • 167.103.32.0/20
  • 167.103.16.0/20
  • 167.103.112.0/20
  • 101.2.224.0/20
  • 101.2.192.0/20
  • 205.220.72.0/21
  • 205.220.16.0/21
  • 175.107.160.0/21
  • 175.107.136.0/21

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

Check an IP address →

Detect it in code

Spot AS53813 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 AS53813

Is AS53813 a datacenter or VPN network?

AS53813 (ZSCALER, INC.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS53813?

AS53813 is registered to ZSCALER, INC.. It announces about 137,216 IPv4 addresses.

How do I detect traffic from AS53813?

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.