Network · AS31721

AS31721 "Azercell Telecom Ltd" Azerbaijan-Turkey Joint Venture

AS31721 ("Azercell Telecom Ltd" Azerbaijan-Turkey Joint Venture) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS31721

  • Owner"Azercell Telecom Ltd" Azerbaijan-Turk
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses66,816
  • IPv4 ranges16
  • IPv6 ranges0
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 5.191.128.0/18
  • 5.191.0.0/18
  • 5.191.64.0/19
  • 5.191.192.0/19
  • 5.191.96.0/20
  • 5.191.224.0/20
  • 217.168.176.0/20
  • 5.191.112.0/21
  • 5.191.120.0/22
  • 62.217.136.0/23
  • 5.191.124.0/23
  • 62.217.143.0/24

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

Check an IP address →

Detect it in code

Spot AS31721 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 AS31721

Is AS31721 a datacenter or VPN network?

AS31721 ("Azercell Telecom Ltd" Azerbaijan-Turkey Joint Venture) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS31721?

AS31721 is registered to "Azercell Telecom Ltd" Azerbaijan-Turkey Joint Venture. It announces about 66,816 IPv4 addresses.

How do I detect traffic from AS31721?

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.