Network · AS19356

AS19356 Tohono O'Odham Utility Authority

AS19356 (Tohono O'Odham Utility Authority) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS19356

OwnerTohono O'Odham Utility Authority
KindInternet service provider
Servers, not peopleno
IPv4 addresses8,192
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

64.25.64.0/20
38.64.112.0/20

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

Check an IP address →

Detect it in code

Spot AS19356 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 AS19356

Is AS19356 a datacenter or VPN network?

AS19356 (Tohono O'Odham Utility Authority) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS19356?

AS19356 is registered to Tohono O'Odham Utility Authority. It announces about 8,192 IPv4 addresses.

How do I detect traffic from AS19356?

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.