Network · AS12657

AS12657 BayCIX GmbH

AS12657 (BayCIX GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS12657

OwnerBayCIX GmbH
KindInternet service provider
Servers, not peopleno
IPv4 addresses24,576
IPv4 ranges3
IPv6 ranges3

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

213.131.192.0/19
212.72.64.0/19
212.102.160.0/19

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

Check an IP address →

Detect it in code

Spot AS12657 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 AS12657

Is AS12657 a datacenter or VPN network?

AS12657 (BayCIX GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS12657?

AS12657 is registered to BayCIX GmbH. It announces about 24,576 IPv4 addresses.

How do I detect traffic from AS12657?

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.