Network · AS38639

AS38639 NTT Communications Corporation

AS38639 (NTT Communications Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS38639

OwnerNTT Communications Corporation
KindInternet service provider
Servers, not peopleno
IPv4 addresses13,312
IPv4 ranges4
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

163.138.224.0/19
220.150.192.0/21
115.69.224.0/21
103.2.128.0/22

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

Check an IP address →

Detect it in code

Spot AS38639 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 AS38639

Is AS38639 a datacenter or VPN network?

AS38639 (NTT Communications Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS38639?

AS38639 is registered to NTT Communications Corporation. It announces about 13,312 IPv4 addresses.

How do I detect traffic from AS38639?

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.