Network · AS2117

AS2117 European Southern Observatory

AS2117 (European Southern Observatory) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS2117

OwnerEuropean Southern Observatory
KindInternet service provider
Servers, not peopleno
IPv4 addresses20,480
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

134.171.0.0/18
134.171.64.0/20

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

Check an IP address →

Detect it in code

Spot AS2117 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 AS2117

Is AS2117 a datacenter or VPN network?

AS2117 (European Southern Observatory) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS2117?

AS2117 is registered to European Southern Observatory. It announces about 20,480 IPv4 addresses.

How do I detect traffic from AS2117?

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.