Network · AS33311

AS33311 TOPCON POSITIONING SYSTEMS INC

AS33311 (TOPCON POSITIONING SYSTEMS INC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS33311

OwnerTOPCON POSITIONING SYSTEMS INC
KindInternet service provider
Servers, not peopleno
IPv4 addresses256
IPv4 ranges1
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

12.107.178.0/24

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

Check an IP address →

Detect it in code

Spot AS33311 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 AS33311

Is AS33311 a datacenter or VPN network?

AS33311 (TOPCON POSITIONING SYSTEMS INC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS33311?

AS33311 is registered to TOPCON POSITIONING SYSTEMS INC. It announces about 256 IPv4 addresses.

How do I detect traffic from AS33311?

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.