Network · AS17161

AS17161 Marsh Inc.

AS17161 (Marsh Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17161

  • OwnerMarsh Inc.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses28,416
  • IPv4 ranges17
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 167.245.160.0/19
  • 205.156.128.0/20
  • 167.245.16.0/20
  • 205.156.144.0/21
  • 167.245.8.0/21
  • 167.245.32.0/21
  • 205.156.152.0/22
  • 167.245.40.0/22
  • 167.245.104.0/22
  • 205.156.160.0/23
  • 167.245.108.0/23
  • 167.245.100.0/23

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

Check an IP address →

Detect it in code

Spot AS17161 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 AS17161

Is AS17161 a datacenter or VPN network?

AS17161 (Marsh Inc.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17161?

AS17161 is registered to Marsh Inc.. It announces about 28,416 IPv4 addresses.

How do I detect traffic from AS17161?

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.