Network · AS51219

AS51219 K2 Integration JSC

AS51219 (K2 Integration JSC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS51219

OwnerK2 Integration JSC
KindInternet service provider
Servers, not peopleno
IPv4 addresses18,176
IPv4 ranges21
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

91.184.232.0/21
5.35.72.0/21
217.73.56.0/21
178.216.96.0/21
93.183.64.0/22
5.35.64.0/22
194.242.120.0/22
185.12.28.0/22
185.102.120.0/22
111.88.164.0/22
93.189.226.0/23
81.23.10.0/23

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

Check an IP address →

Detect it in code

Spot AS51219 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 AS51219

Is AS51219 a datacenter or VPN network?

AS51219 (K2 Integration JSC) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS51219?

AS51219 is registered to K2 Integration JSC. It announces about 18,176 IPv4 addresses.

How do I detect traffic from AS51219?

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.