Network · AS41375

AS41375 PJSC WITH FOREIGN INVESTMENTS "SINTEZ OIL"

AS41375 (PJSC WITH FOREIGN INVESTMENTS "SINTEZ OIL") looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS41375

  • OwnerPJSC WITH FOREIGN INVESTMENTS "SINTEZ
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses512
  • IPv4 ranges2
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 91.220.255.0/24
  • 195.200.196.0/24

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

Check an IP address →

Detect it in code

Spot AS41375 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 AS41375

Is AS41375 a datacenter or VPN network?

AS41375 (PJSC WITH FOREIGN INVESTMENTS "SINTEZ OIL") looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS41375?

AS41375 is registered to PJSC WITH FOREIGN INVESTMENTS "SINTEZ OIL". It announces about 512 IPv4 addresses.

How do I detect traffic from AS41375?

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.