Network · AS137445

AS137445 PF LINK SYSTEMS

AS137445 (PF LINK SYSTEMS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS137445

OwnerPF LINK SYSTEMS
KindInternet service provider
Servers, not peopleno
IPv4 addresses5,888
IPv4 ranges10
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

45.112.128.0/22
103.51.36.0/22
103.48.164.0/22
103.205.72.0/22
103.108.236.0/23
123.253.218.0/24
103.95.30.0/24
103.218.6.0/24
103.215.173.0/24
103.108.238.0/24

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

Check an IP address →

Detect it in code

Spot AS137445 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 AS137445

Is AS137445 a datacenter or VPN network?

AS137445 (PF LINK SYSTEMS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS137445?

AS137445 is registered to PF LINK SYSTEMS. It announces about 5,888 IPv4 addresses.

How do I detect traffic from AS137445?

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.