Network · AS10381

AS10381 Southwest Cyberport, Inc.

AS10381 (Southwest Cyberport, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS10381

  • OwnerSouthwest Cyberport, Inc.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses22,016
  • IPv4 ranges10
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 216.184.0.0/19
  • 69.49.160.0/20
  • 64.42.160.0/20
  • 64.42.128.0/20
  • 204.29.236.0/24
  • 198.59.115.0/24
  • 198.51.249.0/24
  • 198.49.44.0/24
  • 198.49.217.0/24
  • 192.160.121.0/24

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

Check an IP address →

Detect it in code

Spot AS10381 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 AS10381

Is AS10381 a datacenter or VPN network?

AS10381 (Southwest Cyberport, Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS10381?

AS10381 is registered to Southwest Cyberport, Inc.. It announces about 22,016 IPv4 addresses.

How do I detect traffic from AS10381?

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.