Network · AS2552

AS2552 Washington University

AS2552 (Washington University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS2552

OwnerWashington University
KindInternet service provider
Servers, not peopleno
IPv4 addresses73,984
IPv4 ranges3
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

128.252.0.0/16
65.254.96.0/19
192.31.46.0/24

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

Check an IP address →

Detect it in code

Spot AS2552 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 AS2552

Is AS2552 a datacenter or VPN network?

AS2552 (Washington University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS2552?

AS2552 is registered to Washington University. It announces about 73,984 IPv4 addresses.

How do I detect traffic from AS2552?

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.