Network · AS33657

AS33657 Comcast Cable Communications, LLC

AS33657 (Comcast Cable Communications, LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS33657

OwnerComcast Cable Communications, LLC
KindInternet service provider
Servers, not peopleno
IPv4 addresses11,520
IPv4 ranges28
IPv6 ranges193

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

69.67.80.0/20
50.223.158.0/23
192.110.220.0/23
76.78.2.0/24
50.238.163.0/24
50.236.38.0/24
50.236.234.0/24
50.235.98.0/24
50.235.236.0/24
50.232.184.0/24
50.232.173.0/24
50.232.109.0/24

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

Check an IP address →

Detect it in code

Spot AS33657 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 AS33657

Is AS33657 a datacenter or VPN network?

AS33657 (Comcast Cable Communications, LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS33657?

AS33657 is registered to Comcast Cable Communications, LLC. It announces about 11,520 IPv4 addresses.

How do I detect traffic from AS33657?

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.