Network · AS43939

AS43939 Netia SA

AS43939 (Netia SA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS43939

OwnerNetia SA
KindInternet service provider
Servers, not peopleno
IPv4 addresses43,008
IPv4 ranges5
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

90.156.0.0/17
87.99.32.0/19
185.2.36.0/22
91.195.232.0/23
78.31.166.0/23

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

Check an IP address →

Detect it in code

Spot AS43939 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 AS43939

Is AS43939 a datacenter or VPN network?

AS43939 (Netia SA) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS43939?

AS43939 is registered to Netia SA. It announces about 43,008 IPv4 addresses.

How do I detect traffic from AS43939?

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.