Network · AS38203

AS38203 ADN Telecom Ltd.

AS38203 (ADN Telecom Ltd.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS38203

  • OwnerADN Telecom Ltd.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses14,592
  • IPv4 ranges14
  • IPv6 ranges4
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 202.51.176.0/20
  • 203.194.116.0/22
  • 163.47.144.0/22
  • 123.253.144.0/22
  • 103.81.172.0/22
  • 103.4.116.0/22
  • 103.251.120.0/22
  • 103.234.200.0/22
  • 103.219.160.0/22
  • 157.20.148.0/23
  • 103.65.132.0/23
  • 103.190.204.0/23

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.

Check an IP address →

Detect it in code

Spot AS38203 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 AS38203

Is AS38203 a datacenter or VPN network?

AS38203 (ADN Telecom Ltd.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS38203?

AS38203 is registered to ADN Telecom Ltd.. It announces about 14,592 IPv4 addresses.

How do I detect traffic from AS38203?

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.