Network · AS21379

AS21379 LLC TC "Interzvyazok"

AS21379 (LLC TC "Interzvyazok") looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS21379

OwnerLLC TC "Interzvyazok"
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,024
IPv4 ranges3
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

217.147.160.0/23
217.147.164.0/24
217.147.163.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS21379 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 AS21379

Is AS21379 a datacenter or VPN network?

AS21379 (LLC TC "Interzvyazok") looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS21379?

AS21379 is registered to LLC TC "Interzvyazok". It announces about 1,024 IPv4 addresses.

How do I detect traffic from AS21379?

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.