Network · AS17209

AS17209 Houghton Mifflin Harcourt Publishing Company

AS17209 (Houghton Mifflin Harcourt Publishing Company) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17209

OwnerHoughton Mifflin Harcourt Publishing C
KindInternet service provider
Servers, not peopleno
IPv4 addresses512
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

38.73.129.0/24
198.161.165.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS17209 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 AS17209

Is AS17209 a datacenter or VPN network?

AS17209 (Houghton Mifflin Harcourt Publishing Company) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17209?

AS17209 is registered to Houghton Mifflin Harcourt Publishing Company. It announces about 512 IPv4 addresses.

How do I detect traffic from AS17209?

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.