Network · AS1831

AS1831 ITESO, A.C.

AS1831 (ITESO, A.C.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS1831

OwnerITESO, A.C.
KindInternet service provider
Servers, not peopleno
IPv4 addresses65,536
IPv4 ranges1
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

148.201.0.0/16

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

Check an IP address →

Detect it in code

Spot AS1831 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 AS1831

Is AS1831 a datacenter or VPN network?

AS1831 (ITESO, A.C.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS1831?

AS1831 is registered to ITESO, A.C.. It announces about 65,536 IPv4 addresses.

How do I detect traffic from AS1831?

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.