Network · AS51185

AS51185 MainStreaming SpA

AS51185 (MainStreaming SpA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS51185

  • OwnerMainStreaming SpA
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses6,144
  • IPv4 ranges10
  • IPv6 ranges17
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 94.124.68.0/22
  • 45.157.64.0/22
  • 185.187.156.0/22
  • 178.248.48.0/22
  • 94.124.64.0/23
  • 178.248.52.0/23
  • 94.124.67.0/24
  • 185.45.211.0/24
  • 185.45.208.0/24
  • 178.248.54.0/24

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

Check an IP address →

Detect it in code

Spot AS51185 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 AS51185

Is AS51185 a datacenter or VPN network?

AS51185 (MainStreaming SpA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS51185?

AS51185 is registered to MainStreaming SpA. It announces about 6,144 IPv4 addresses.

How do I detect traffic from AS51185?

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.