Network · AS11528

AS11528 Photronics Inc.

AS11528 (Photronics Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS11528

  • OwnerPhotronics Inc.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses2,560
  • IPv4 ranges7
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 206.220.68.0/22
  • 199.36.7.0/24
  • 199.36.4.0/24
  • 199.36.2.0/24
  • 199.36.0.0/24
  • 198.61.5.0/24
  • 192.129.97.0/24

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

Check an IP address →

Detect it in code

Spot AS11528 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 AS11528

Is AS11528 a datacenter or VPN network?

AS11528 (Photronics Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS11528?

AS11528 is registered to Photronics Inc.. It announces about 2,560 IPv4 addresses.

How do I detect traffic from AS11528?

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.