Network · AS18558

AS18558 Riverside County Office of Education

AS18558 (Riverside County Office of Education) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS18558

OwnerRiverside County Office of Education
KindInternet service provider
Servers, not peopleno
IPv4 addresses72,192
IPv4 ranges5
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

204.100.0.0/16
204.26.32.0/20
204.26.48.0/21
204.26.56.0/24
198.188.95.0/24

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

Check an IP address →

Detect it in code

Spot AS18558 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 AS18558

Is AS18558 a datacenter or VPN network?

AS18558 (Riverside County Office of Education) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS18558?

AS18558 is registered to Riverside County Office of Education. It announces about 72,192 IPv4 addresses.

How do I detect traffic from AS18558?

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.