Network · AS40444

AS40444 Constant Contact, Inc

AS40444 (Constant Contact, Inc) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS40444

OwnerConstant Contact, Inc
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,304
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

208.75.120.0/22
205.207.104.0/22
216.21.230.0/24

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

Check an IP address →

Detect it in code

Spot AS40444 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 AS40444

Is AS40444 a datacenter or VPN network?

AS40444 (Constant Contact, Inc) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS40444?

AS40444 is registered to Constant Contact, Inc. It announces about 2,304 IPv4 addresses.

How do I detect traffic from AS40444?

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.