Network · AS1603

AS1603 Henderson State University

AS1603 (Henderson State University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS1603

OwnerHenderson State University
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,560
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

198.16.16.0/21
198.16.24.0/24
192.101.185.0/24

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

Check an IP address →

Detect it in code

Spot AS1603 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 AS1603

Is AS1603 a datacenter or VPN network?

AS1603 (Henderson State University) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS1603?

AS1603 is registered to Henderson State University. It announces about 2,560 IPv4 addresses.

How do I detect traffic from AS1603?

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.