Network · AS1999

AS1999 U.S. House of Representatives

AS1999 (U.S. House of Representatives) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS1999

OwnerU.S. House of Representatives
KindInternet service provider
Servers, not peopleno
IPv4 addresses197,376
IPv4 ranges5
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

143.231.0.0/16
143.228.0.0/16
137.18.0.0/16
74.119.130.0/23
74.119.128.0/24

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

Check an IP address →

Detect it in code

Spot AS1999 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 AS1999

Is AS1999 a datacenter or VPN network?

AS1999 (U.S. House of Representatives) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS1999?

AS1999 is registered to U.S. House of Representatives. It announces about 197,376 IPv4 addresses.

How do I detect traffic from AS1999?

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.