Network · AS9999

AS9999 AT TOKYO Corporation

AS9999 (AT TOKYO Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS9999

OwnerAT TOKYO Corporation
KindInternet service provider
Servers, not peopleno
IPv4 addresses20,224
IPv4 ranges10
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

219.99.128.0/20
211.132.0.0/20
165.100.192.0/20
203.223.24.0/21
119.59.64.0/21
203.89.128.0/22
202.13.124.0/22
110.44.20.0/22
203.80.6.0/23
202.243.223.0/24

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

Check an IP address →

Detect it in code

Spot AS9999 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 AS9999

Is AS9999 a datacenter or VPN network?

AS9999 (AT TOKYO Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS9999?

AS9999 is registered to AT TOKYO Corporation. It announces about 20,224 IPv4 addresses.

How do I detect traffic from AS9999?

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.