Network · AS427

AS427 Air Force Systems Networking

AS427 (Air Force Systems Networking) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS427

OwnerAir Force Systems Networking
KindInternet service provider
Servers, not peopleno
IPv4 addresses133,120
IPv4 ranges6
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

132.61.0.0/16
132.16.0.0/16
132.3.12.0/22
199.251.88.0/23
198.218.204.0/24
192.77.104.0/24

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

Check an IP address →

Detect it in code

Spot AS427 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 AS427

Is AS427 a datacenter or VPN network?

AS427 (Air Force Systems Networking) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS427?

AS427 is registered to Air Force Systems Networking. It announces about 133,120 IPv4 addresses.

How do I detect traffic from AS427?

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.