Network · AS137551

AS137551 REDLINK TELECOM Co., Ltd

AS137551 (REDLINK TELECOM Co., Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS137551

OwnerREDLINK TELECOM Co., Ltd
KindInternet service provider
Servers, not peopleno
IPv4 addresses5,120
IPv4 ranges5
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

79.109.224.0/22
139.5.132.0/22
103.121.188.0/22
103.120.120.0/22
103.112.240.0/22

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

Check an IP address →

Detect it in code

Spot AS137551 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 AS137551

Is AS137551 a datacenter or VPN network?

AS137551 (REDLINK TELECOM Co., Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS137551?

AS137551 is registered to REDLINK TELECOM Co., Ltd. It announces about 5,120 IPv4 addresses.

How do I detect traffic from AS137551?

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.