Network · AS13506

AS13506 US Department of the Treasury

AS13506 (US Department of the Treasury) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS13506

OwnerUS Department of the Treasury
KindInternet service provider
Servers, not peopleno
IPv4 addresses131,072
IPv4 ranges2
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

166.123.0.0/16
164.95.0.0/16

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

Check an IP address →

Detect it in code

Spot AS13506 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 AS13506

Is AS13506 a datacenter or VPN network?

AS13506 (US Department of the Treasury) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS13506?

AS13506 is registered to US Department of the Treasury. It announces about 131,072 IPv4 addresses.

How do I detect traffic from AS13506?

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.