Network · AS37333

AS37333 Comtel Communications

AS37333 (Comtel Communications) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS37333

OwnerComtel Communications
KindInternet service provider
Servers, not peopleno
IPv4 addresses9,472
IPv4 ranges8
IPv6 ranges5

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

41.77.200.0/21
41.76.32.0/21
41.138.64.0/21
154.73.240.0/22
102.67.48.0/22
154.73.246.0/23
102.67.52.0/23
154.73.244.0/24

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

Check an IP address →

Detect it in code

Spot AS37333 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 AS37333

Is AS37333 a datacenter or VPN network?

AS37333 (Comtel Communications) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS37333?

AS37333 is registered to Comtel Communications. It announces about 9,472 IPv4 addresses.

How do I detect traffic from AS37333?

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.