Network · AS37989

AS37989 DCS1 Pte. Ltd.

AS37989 (DCS1 Pte. Ltd.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS37989

  • OwnerDCS1 Pte. Ltd.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses1,280
  • IPv4 ranges2
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 203.123.48.0/22
  • 44.32.99.0/24

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

Check an IP address →

Detect it in code

Spot AS37989 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 AS37989

Is AS37989 a datacenter or VPN network?

AS37989 (DCS1 Pte. Ltd.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS37989?

AS37989 is registered to DCS1 Pte. Ltd.. It announces about 1,280 IPv4 addresses.

How do I detect traffic from AS37989?

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.