Network · AS21759

AS21759 National Rural Utilities Cooperative Finance Corporation

AS21759 (National Rural Utilities Cooperative Finance Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21759

  • OwnerNational Rural Utilities Cooperative F
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses768
  • IPv4 ranges3
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 205.229.101.0/24
  • 204.111.120.0/24
  • 192.31.110.0/24

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

Check an IP address →

Detect it in code

Spot AS21759 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 AS21759

Is AS21759 a datacenter or VPN network?

AS21759 (National Rural Utilities Cooperative Finance Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21759?

AS21759 is registered to National Rural Utilities Cooperative Finance Corporation. It announces about 768 IPv4 addresses.

How do I detect traffic from AS21759?

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.