Network · AS133748

AS133748 Coretel Networks (International) Pte Ltd

AS133748 (Coretel Networks (International) Pte Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS133748

  • OwnerCoretel Networks (International) Pte L
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses5,376
  • IPv4 ranges9
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 43.249.248.0/22
  • 206.131.204.0/22
  • 206.131.196.0/22
  • 206.131.202.0/23
  • 206.131.192.0/23
  • 103.41.130.0/23
  • 206.131.195.0/24
  • 156.225.48.0/24
  • 103.41.128.0/24

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

Check an IP address →

Detect it in code

Spot AS133748 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 AS133748

Is AS133748 a datacenter or VPN network?

AS133748 (Coretel Networks (International) Pte Ltd) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS133748?

AS133748 is registered to Coretel Networks (International) Pte Ltd. It announces about 5,376 IPv4 addresses.

How do I detect traffic from AS133748?

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.