Network · AS45903

AS45903 CMC Telecom Infrastructure Company

AS45903 (CMC Telecom Infrastructure Company) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS45903

OwnerCMC Telecom Infrastructure Company
KindInternet service provider
Servers, not peopleno
IPv4 addresses82,432
IPv4 ranges54
IPv6 ranges17

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

203.205.32.0/19
113.20.96.0/19
101.99.32.0/19
203.205.16.0/20
203.171.16.0/20
183.91.16.0/20
101.99.16.0/20
45.122.232.0/21
42.96.48.0/21
42.96.40.0/21
202.134.16.0/21
183.91.0.0/21

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

Check an IP address →

Detect it in code

Spot AS45903 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 AS45903

Is AS45903 a datacenter or VPN network?

AS45903 (CMC Telecom Infrastructure Company) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS45903?

AS45903 is registered to CMC Telecom Infrastructure Company. It announces about 82,432 IPv4 addresses.

How do I detect traffic from AS45903?

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.