Network · AS45688

AS45688 The University of Tokyo Interfaculty Initiative in Information Studies

AS45688 (The University of Tokyo Interfaculty Initiative in Information Studies) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS45688

OwnerThe University of Tokyo Interfaculty I
KindInternet service provider
Servers, not peopleno
IPv4 addresses3,584
IPv4 ranges4
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

133.69.168.0/21
133.69.160.0/22
133.69.184.0/24
133.69.176.0/24

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

Check an IP address →

Detect it in code

Spot AS45688 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 AS45688

Is AS45688 a datacenter or VPN network?

AS45688 (The University of Tokyo Interfaculty Initiative in Information Studies) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS45688?

AS45688 is registered to The University of Tokyo Interfaculty Initiative in Information Studies. It announces about 3,584 IPv4 addresses.

How do I detect traffic from AS45688?

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.