Network · AS12731

AS12731 IPHH Internet Port Hamburg GmbH

AS12731 (IPHH Internet Port Hamburg GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS12731

OwnerIPHH Internet Port Hamburg GmbH
KindInternet service provider
Servers, not peopleno
IPv4 addresses19,456
IPv4 ranges14
IPv6 ranges13

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

213.128.128.0/19
62.201.176.0/20
62.201.160.0/21
62.201.168.0/22
185.53.220.0/22
62.201.174.0/23
45.130.192.0/23
193.41.8.0/23
91.216.90.0/24
62.201.173.0/24
194.113.43.0/24
192.129.45.0/24

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

Check an IP address →

Detect it in code

Spot AS12731 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 AS12731

Is AS12731 a datacenter or VPN network?

AS12731 (IPHH Internet Port Hamburg GmbH) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS12731?

AS12731 is registered to IPHH Internet Port Hamburg GmbH. It announces about 19,456 IPv4 addresses.

How do I detect traffic from AS12731?

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.