Network · AS4725

AS4725 SoftBank Corp.

AS4725 (SoftBank Corp.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS4725

OwnerSoftBank Corp.
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,919,744
IPv4 ranges131
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

219.66.0.0/15
61.209.0.0/16
61.196.0.0/16
61.123.0.0/16
61.116.0.0/16
39.3.0.0/16
220.212.0.0/16
218.46.0.0/16
211.8.0.0/16
211.3.0.0/16
211.131.0.0/16
211.127.0.0/16

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

Check an IP address →

Detect it in code

Spot AS4725 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 AS4725

Is AS4725 a datacenter or VPN network?

AS4725 (SoftBank Corp.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS4725?

AS4725 is registered to SoftBank Corp.. It announces about 1,919,744 IPv4 addresses.

How do I detect traffic from AS4725?

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.