Network · AS3258

AS3258 xTom Japan Corporation

AS3258 (xTom Japan Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS3258

OwnerxTom Japan Corporation
KindInternet service provider
Servers, not peopleno
IPv4 addresses35,328
IPv4 ranges79
IPv6 ranges13

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

45.159.48.0/22
45.153.244.0/22
45.149.156.0/22
45.143.232.0/22
45.14.64.0/22
45.129.8.0/22
45.128.208.0/22
201.4.40.0/22
201.4.36.0/22
193.32.148.0/22
185.200.64.0/22
147.78.244.0/22

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

Check an IP address →

Detect it in code

Spot AS3258 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 AS3258

Is AS3258 a datacenter or VPN network?

AS3258 (xTom Japan Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS3258?

AS3258 is registered to xTom Japan Corporation. It announces about 35,328 IPv4 addresses.

How do I detect traffic from AS3258?

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.