Network · AS9601

AS9601 Niigata Communication Service

AS9601 (Niigata Communication Service) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS9601

OwnerNiigata Communication Service
KindInternet service provider
Servers, not peopleno
IPv4 addresses27,648
IPv4 ranges7
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

211.12.192.0/19
114.134.32.0/19
219.101.64.0/20
210.229.48.0/20
58.84.240.0/21
58.84.252.0/23
58.84.250.0/23

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

Check an IP address →

Detect it in code

Spot AS9601 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 AS9601

Is AS9601 a datacenter or VPN network?

AS9601 (Niigata Communication Service) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS9601?

AS9601 is registered to Niigata Communication Service. It announces about 27,648 IPv4 addresses.

How do I detect traffic from AS9601?

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.