Network · AS131929

AS131929 Yamanashi CATV Co,. ltd

AS131929 (Yamanashi CATV Co,. ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS131929

OwnerYamanashi CATV Co,. ltd
KindInternet service provider
Servers, not peopleno
IPv4 addresses4,096
IPv4 ranges3
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

133.247.224.0/21
219.100.248.0/22
103.108.232.0/22

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

Check an IP address →

Detect it in code

Spot AS131929 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 AS131929

Is AS131929 a datacenter or VPN network?

AS131929 (Yamanashi CATV Co,. ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS131929?

AS131929 is registered to Yamanashi CATV Co,. ltd. It announces about 4,096 IPv4 addresses.

How do I detect traffic from AS131929?

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.