Network · AS138233

AS138233 Proton Internet Llp

AS138233 (Proton Internet Llp) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS138233

OwnerProton Internet Llp
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,048
IPv4 ranges6
IPv6 ranges3

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

163.223.86.0/23
151.158.140.0/23
172.121.251.0/24
172.121.249.0/24
103.181.200.0/24
103.149.68.0/24

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

Check an IP address →

Detect it in code

Spot AS138233 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 AS138233

Is AS138233 a datacenter or VPN network?

AS138233 (Proton Internet Llp) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS138233?

AS138233 is registered to Proton Internet Llp. It announces about 2,048 IPv4 addresses.

How do I detect traffic from AS138233?

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.