Network · AS17691

AS17691 NDS Co., Ltd.

AS17691 (NDS Co., Ltd.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17691

OwnerNDS Co., Ltd.
KindInternet service provider
Servers, not peopleno
IPv4 addresses21,504
IPv4 ranges7
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

61.4.128.0/20
219.117.128.0/20
218.40.16.0/20
218.223.240.0/20
61.4.144.0/21
202.157.104.0/21
202.157.96.0/22

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

Check an IP address →

Detect it in code

Spot AS17691 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 AS17691

Is AS17691 a datacenter or VPN network?

AS17691 (NDS Co., Ltd.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17691?

AS17691 is registered to NDS Co., Ltd.. It announces about 21,504 IPv4 addresses.

How do I detect traffic from AS17691?

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.