Network · AS21582

AS21582 Northern Arizona University

AS21582 (Northern Arizona University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21582

OwnerNorthern Arizona University
KindInternet service provider
Servers, not peopleno
IPv4 addresses74,240
IPv4 ranges4
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

134.114.0.0/16
207.246.0.0/19
65.173.245.0/24
198.60.189.0/24

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

Check an IP address →

Detect it in code

Spot AS21582 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 AS21582

Is AS21582 a datacenter or VPN network?

AS21582 (Northern Arizona University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21582?

AS21582 is registered to Northern Arizona University. It announces about 74,240 IPv4 addresses.

How do I detect traffic from AS21582?

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.