Network · AS12874

AS12874 Fastweb SpA

AS12874 (Fastweb SpA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS12874

OwnerFastweb SpA
KindInternet service provider
Servers, not peopleno
IPv4 addresses3,563,008
IPv4 ranges63
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

93.32.0.0/11
2.224.0.0/12
89.96.0.0/15
85.18.0.0/16
92.223.128.0/17
83.103.0.0/17
81.208.0.0/17
151.0.128.0/17
62.101.64.0/18
37.186.192.0/18
213.156.32.0/19
213.140.0.0/19

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

Check an IP address →

Detect it in code

Spot AS12874 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 AS12874

Is AS12874 a datacenter or VPN network?

AS12874 (Fastweb SpA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS12874?

AS12874 is registered to Fastweb SpA. It announces about 3,563,008 IPv4 addresses.

How do I detect traffic from AS12874?

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.