Network · AS26

AS26 Cornell University

AS26 (Cornell University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS26

OwnerCornell University
KindInternet service provider
Servers, not peopleno
IPv4 addresses197,376
IPv4 ranges6
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

132.236.0.0/16
128.84.0.0/16
128.253.0.0/16
192.35.82.0/24
192.122.236.0/24
192.122.235.0/24

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

Check an IP address →

Detect it in code

Spot AS26 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 AS26

Is AS26 a datacenter or VPN network?

AS26 (Cornell University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS26?

AS26 is registered to Cornell University. It announces about 197,376 IPv4 addresses.

How do I detect traffic from AS26?

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.