AS2857
- OwnerJohannes Gutenberg-Universitaet Mainz
- KindInternet service provider
- Servers, not peopleno
- IPv4 addresses332,800
- IPv4 ranges10
- IPv6 ranges1
Nothing suspicious found.
Network · AS2857
AS2857 (Johannes Gutenberg-Universitaet Mainz) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
AS2857
Nothing suspicious found.
143.93.0.0/16141.26.0.0/16139.14.0.0/16136.199.0.0/16134.93.0.0/16217.198.240.0/20193.43.29.0/24193.30.18.0/24192.67.218.0/24192.124.238.0/24Ranges 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);AS2857 (Johannes Gutenberg-Universitaet Mainz) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.
AS2857 is registered to Johannes Gutenberg-Universitaet Mainz. It announces about 332,800 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.