Network · AS17516

AS17516 NTT COMWARE CORPORATION

AS17516 (NTT COMWARE CORPORATION) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17516

  • OwnerNTT COMWARE CORPORATION
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses19,456
  • IPv4 ranges16
  • IPv6 ranges2
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 163.137.128.0/19
  • 163.137.232.0/21
  • 163.137.200.0/21
  • 163.137.224.0/22
  • 163.137.216.0/22
  • 163.137.212.0/22
  • 163.137.230.0/23
  • 163.137.220.0/23
  • 163.137.208.0/23
  • 163.137.196.0/23
  • 163.137.194.0/23
  • 132.222.192.0/23

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

Check an IP address →

Detect it in code

Spot AS17516 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 AS17516

Is AS17516 a datacenter or VPN network?

AS17516 (NTT COMWARE CORPORATION) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17516?

AS17516 is registered to NTT COMWARE CORPORATION. It announces about 19,456 IPv4 addresses.

How do I detect traffic from AS17516?

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.