Network · AS131646

AS131646 CORE WINNER CO.,LIMITED TAIWAN BRANCH

AS131646 (CORE WINNER CO.,LIMITED TAIWAN BRANCH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS131646

OwnerCORE WINNER CO.,LIMITED TAIWAN BRANCH
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,304
IPv4 ranges9
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

49.128.203.0/24
43.252.209.0/24
43.229.155.0/24
43.224.23.0/24
36.255.192.0/24
150.107.62.0/24
150.107.60.0/24
103.225.196.0/24
103.183.126.0/24

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

Check an IP address →

Detect it in code

Spot AS131646 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 AS131646

Is AS131646 a datacenter or VPN network?

AS131646 (CORE WINNER CO.,LIMITED TAIWAN BRANCH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS131646?

AS131646 is registered to CORE WINNER CO.,LIMITED TAIWAN BRANCH. It announces about 2,304 IPv4 addresses.

How do I detect traffic from AS131646?

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.