Network · AS17166

AS17166 Travelers Property Casualty Corp.

AS17166 (Travelers Property Casualty Corp.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17166

  • OwnerTravelers Property Casualty Corp.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses52,224
  • IPv4 ranges41
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 170.202.224.0/19
  • 170.202.96.0/20
  • 170.202.32.0/20
  • 170.202.160.0/20
  • 170.202.128.0/20
  • 170.202.0.0/20
  • 170.202.56.0/21
  • 170.202.216.0/21
  • 170.202.192.0/21
  • 12.163.16.0/21
  • 170.202.68.0/22
  • 170.202.48.0/22

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

Check an IP address →

Detect it in code

Spot AS17166 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 AS17166

Is AS17166 a datacenter or VPN network?

AS17166 (Travelers Property Casualty Corp.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17166?

AS17166 is registered to Travelers Property Casualty Corp.. It announces about 52,224 IPv4 addresses.

How do I detect traffic from AS17166?

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.