Network · AS23859

AS23859 Australian Academic and Research Network

AS23859 (Australian Academic and Research Network) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS23859

OwnerAustralian Academic and Research Netwo
KindInternet service provider
Servers, not peopleno
IPv4 addresses196,864
IPv4 ranges4
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

149.171.0.0/16
131.236.0.0/16
129.94.0.0/16
203.10.48.0/24

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

Check an IP address →

Detect it in code

Spot AS23859 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 AS23859

Is AS23859 a datacenter or VPN network?

AS23859 (Australian Academic and Research Network) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS23859?

AS23859 is registered to Australian Academic and Research Network. It announces about 196,864 IPv4 addresses.

How do I detect traffic from AS23859?

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.