Network · AS24635

AS24635 Syntax Service GmbH

AS24635 (Syntax Service GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS24635

OwnerSyntax Service GmbH
KindInternet service provider
Servers, not peopleno
IPv4 addresses64,512
IPv4 ranges6
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

153.95.0.0/17
153.95.128.0/18
153.95.192.0/19
153.95.240.0/20
153.95.232.0/21
153.95.228.0/22

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

Check an IP address →

Detect it in code

Spot AS24635 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 AS24635

Is AS24635 a datacenter or VPN network?

AS24635 (Syntax Service GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS24635?

AS24635 is registered to Syntax Service GmbH. It announces about 64,512 IPv4 addresses.

How do I detect traffic from AS24635?

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.