Network · AS3361

AS3361 Digital Fortress, Inc.

AS3361 (Digital Fortress, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS3361

OwnerDigital Fortress, Inc.
KindInternet service provider
Servers, not peopleno
IPv4 addresses17,920
IPv4 ranges20
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

216.168.32.0/19
173.225.16.0/20
74.209.176.0/23
69.46.32.0/23
68.64.52.0/23
68.64.50.0/23
74.209.182.0/24
74.209.168.0/24
74.209.160.0/24
69.46.47.0/24
69.46.45.0/24
69.46.43.0/24

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

Check an IP address →

Detect it in code

Spot AS3361 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 AS3361

Is AS3361 a datacenter or VPN network?

AS3361 (Digital Fortress, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS3361?

AS3361 is registered to Digital Fortress, Inc.. It announces about 17,920 IPv4 addresses.

How do I detect traffic from AS3361?

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.