Network · AS5877

AS5877 United States Department of Defense (DoD)

AS5877 (United States Department of Defense (DoD)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS5877

  • OwnerUnited States Department of Defense (D
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses1,280
  • IPv4 ranges4
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 139.242.24.0/23
  • 139.242.30.0/24
  • 139.242.28.0/24
  • 139.242.26.0/24

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

Check an IP address →

Detect it in code

Spot AS5877 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 AS5877

Is AS5877 a datacenter or VPN network?

AS5877 (United States Department of Defense (DoD)) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS5877?

AS5877 is registered to United States Department of Defense (DoD). It announces about 1,280 IPv4 addresses.

How do I detect traffic from AS5877?

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.