Network · AS37918

AS37918 Nippon Telegraph and Telephone Corporation

AS37918 (Nippon Telegraph and Telephone Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS37918

OwnerNippon Telegraph and Telephone Corpora
KindInternet service provider
Servers, not peopleno
IPv4 addresses69,376
IPv4 ranges5
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

129.60.0.0/16
192.68.240.0/21
192.68.236.0/22
192.68.248.0/23
192.68.235.0/24

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

Check an IP address →

Detect it in code

Spot AS37918 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 AS37918

Is AS37918 a datacenter or VPN network?

AS37918 (Nippon Telegraph and Telephone Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS37918?

AS37918 is registered to Nippon Telegraph and Telephone Corporation. It announces about 69,376 IPv4 addresses.

How do I detect traffic from AS37918?

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.