AS5501
- OwnerFraunhofer-Gesellschaft zur Foerderung
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses121,088
- IPv4 ranges37
- IPv6 ranges8
Nothing suspicious found.
Network · AS5501
AS5501 (Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
AS5501
Nothing suspicious found.
137.251.0.0/16129.233.0.0/17129.233.240.0/20153.97.0.0/21153.96.0.0/21192.44.0.0/22153.96.220.0/22153.96.12.0/22129.233.220.0/22129.233.204.0/22153.96.8.0/23153.96.54.0/23Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-21.
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);AS5501 (Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
AS5501 is registered to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.. It announces about 121,088 IPv4 addresses.
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.