Network · AS18888

AS18888 ZILLOW, INC.

AS18888 (ZILLOW, INC.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS18888

OwnerZILLOW, INC.
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,280
IPv4 ranges5
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

64.42.191.0/24
64.42.189.0/24
64.42.187.0/24
209.133.71.0/24
192.211.13.0/24

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

Check an IP address →

Detect it in code

Spot AS18888 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 AS18888

Is AS18888 a datacenter or VPN network?

AS18888 (ZILLOW, INC.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS18888?

AS18888 is registered to ZILLOW, INC.. It announces about 1,280 IPv4 addresses.

How do I detect traffic from AS18888?

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.