Network · AS138601

AS138601 Coloasia Limited

AS138601 (Coloasia Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS138601

OwnerColoasia Limited
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,048
IPv4 ranges5
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

103.134.88.0/22
202.129.193.0/24
123.176.58.0/24
123.176.56.0/24
103.244.247.0/24

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

Check an IP address →

Detect it in code

Spot AS138601 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 AS138601

Is AS138601 a datacenter or VPN network?

AS138601 (Coloasia Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS138601?

AS138601 is registered to Coloasia Limited. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS138601?

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.