Network · AS21

AS21 The RAND Corporation

AS21 (The RAND Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21

OwnerThe RAND Corporation
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,560
IPv4 ranges9
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

130.154.0.0/23
192.5.14.0/24
166.67.240.0/24
130.154.33.0/24
130.154.30.0/24
130.154.3.0/24
130.154.113.0/24
130.154.111.0/24
130.154.11.0/24

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

Check an IP address →

Detect it in code

Spot AS21 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 AS21

Is AS21 a datacenter or VPN network?

AS21 (The RAND Corporation) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21?

AS21 is registered to The RAND Corporation. It announces about 2,560 IPv4 addresses.

How do I detect traffic from AS21?

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.