Network · AS201319

AS201319 Stadt Zuerich, Organisation und Informatik

AS201319 (Stadt Zuerich, Organisation und Informatik) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS201319

OwnerStadt Zuerich, Organisation und Inform
KindInternet service provider
Servers, not peopleno
IPv4 addresses18,432
IPv4 ranges2
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

194.56.0.0/18
194.56.64.0/21

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

Check an IP address →

Detect it in code

Spot AS201319 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 AS201319

Is AS201319 a datacenter or VPN network?

AS201319 (Stadt Zuerich, Organisation und Informatik) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS201319?

AS201319 is registered to Stadt Zuerich, Organisation und Informatik. It announces about 18,432 IPv4 addresses.

How do I detect traffic from AS201319?

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.