Network · AS27391

AS27391 Washington Corporations

AS27391 (Washington Corporations) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS27391

OwnerWashington Corporations
KindInternet service provider
Servers, not peopleno
IPv4 addresses3,584
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

216.240.112.0/21
216.240.120.0/22
216.240.124.0/23

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

Check an IP address →

Detect it in code

Spot AS27391 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 AS27391

Is AS27391 a datacenter or VPN network?

AS27391 (Washington Corporations) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS27391?

AS27391 is registered to Washington Corporations. It announces about 3,584 IPv4 addresses.

How do I detect traffic from AS27391?

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.