Network · AS27381

AS27381 Index Exchange Inc.

AS27381 (Index Exchange Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS27381

  • OwnerIndex Exchange Inc.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses12,544
  • IPv4 ranges14
  • IPv6 ranges5
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 209.204.224.0/20
  • 192.40.32.0/21
  • 85.91.44.0/22
  • 185.80.36.0/22
  • 185.170.60.0/22
  • 139.5.84.0/22
  • 170.76.128.0/23
  • 8.36.162.0/24
  • 75.119.185.0/24
  • 23.90.68.0/24
  • 192.139.80.0/24
  • 110.44.7.0/24

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

Check an IP address →

Detect it in code

Spot AS27381 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 AS27381

Is AS27381 a datacenter or VPN network?

AS27381 (Index Exchange Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS27381?

AS27381 is registered to Index Exchange Inc.. It announces about 12,544 IPv4 addresses.

How do I detect traffic from AS27381?

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.