Network · AS39588

AS39588 Mimecast Services Limited

AS39588 (Mimecast Services Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS39588

  • OwnerMimecast Services Limited
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses3,584
  • IPv4 ranges9
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 194.104.108.0/22
  • 51.163.158.0/23
  • 147.28.34.0/23
  • 62.140.7.0/24
  • 62.140.10.0/24
  • 41.74.203.0/24
  • 216.145.222.0/24
  • 216.145.218.0/24
  • 170.10.142.0/24

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

Check an IP address →

Detect it in code

Spot AS39588 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 AS39588

Is AS39588 a datacenter or VPN network?

AS39588 (Mimecast Services Limited) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS39588?

AS39588 is registered to Mimecast Services Limited. It announces about 3,584 IPv4 addresses.

How do I detect traffic from AS39588?

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.