Network · AS51559

AS51559 Netinternet Bilisim Teknolojileri AS

AS51559 (Netinternet Bilisim Teknolojileri AS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS51559

OwnerNetinternet Bilisim Teknolojileri AS
KindInternet service provider
Servers, not peopleno
IPv4 addresses36,608
IPv4 ranges53
IPv6 ranges9

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

89.252.160.0/20
95.173.184.0/21
95.173.160.0/21
94.102.0.0/21
159.253.40.0/21
95.173.180.0/22
95.173.168.0/22
94.102.8.0/22
93.115.76.0/22
93.113.60.0/22
89.43.64.0/22
89.43.28.0/22

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

Check an IP address →

Detect it in code

Spot AS51559 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 AS51559

Is AS51559 a datacenter or VPN network?

AS51559 (Netinternet Bilisim Teknolojileri AS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS51559?

AS51559 is registered to Netinternet Bilisim Teknolojileri AS. It announces about 36,608 IPv4 addresses.

How do I detect traffic from AS51559?

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.