Network · AS45372

AS45372 ULNetworks Co., Ltd.

AS45372 (ULNetworks Co., Ltd.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS45372

OwnerULNetworks Co., Ltd.
KindInternet service provider
Servers, not peopleno
IPv4 addresses63,488
IPv4 ranges5
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

27.125.0.0/17
182.237.64.0/18
211.235.192.0/19
113.197.80.0/20
61.100.240.0/21

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

Check an IP address →

Detect it in code

Spot AS45372 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 AS45372

Is AS45372 a datacenter or VPN network?

AS45372 (ULNetworks Co., Ltd.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS45372?

AS45372 is registered to ULNetworks Co., Ltd.. It announces about 63,488 IPv4 addresses.

How do I detect traffic from AS45372?

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.