Network · AS13273

AS13273 Alter Way SAS

AS13273 (Alter Way SAS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS13273

OwnerAlter Way SAS
KindInternet service provider
Servers, not peopleno
IPv4 addresses27,392
IPv4 ranges6
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

213.91.0.0/18
213.162.32.0/19
185.21.152.0/22
185.114.208.0/22
195.54.62.0/23
91.216.209.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS13273 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 AS13273

Is AS13273 a datacenter or VPN network?

AS13273 (Alter Way SAS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS13273?

AS13273 is registered to Alter Way SAS. It announces about 27,392 IPv4 addresses.

How do I detect traffic from AS13273?

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.