Network · AS1787

AS1787 Thomson Reuters U.S. LLC

AS1787 (Thomson Reuters U.S. LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS1787

OwnerThomson Reuters U.S. LLC
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,536
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

159.220.48.0/22
192.165.219.0/24
159.220.40.0/24

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

Check an IP address →

Detect it in code

Spot AS1787 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 AS1787

Is AS1787 a datacenter or VPN network?

AS1787 (Thomson Reuters U.S. LLC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS1787?

AS1787 is registered to Thomson Reuters U.S. LLC. It announces about 1,536 IPv4 addresses.

How do I detect traffic from AS1787?

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.