Network · AS12578

AS12578 SIA Tet

AS12578 (SIA Tet) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS12578

  • OwnerSIA Tet
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses487,936
  • IPv4 ranges100
  • IPv6 ranges19
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 78.84.0.0/16
  • 46.109.0.0/16
  • 95.68.0.0/17
  • 91.105.0.0/17
  • 87.110.0.0/17
  • 62.85.0.0/17
  • 87.110.128.0/18
  • 84.237.128.0/18
  • 81.198.0.0/18
  • 81.198.96.0/19
  • 81.198.224.0/19
  • 81.198.128.0/19

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

Check an IP address →

Detect it in code

Spot AS12578 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 AS12578

Is AS12578 a datacenter or VPN network?

AS12578 (SIA Tet) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS12578?

AS12578 is registered to SIA Tet. It announces about 487,936 IPv4 addresses.

How do I detect traffic from AS12578?

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.