Network · AS31726

AS31726 Telefiber AS

AS31726 (Telefiber AS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS31726

OwnerTelefiber AS
KindInternet service provider
Servers, not peopleno
IPv4 addresses31,744
IPv4 ranges12
IPv6 ranges3

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

94.139.64.0/19
109.109.64.0/19
46.228.48.0/20
77.95.72.0/21
31.204.72.0/21
185.90.180.0/22
185.229.228.0/22
185.211.72.0/22
185.155.212.0/22
185.149.16.0/22
185.117.192.0/22
185.102.28.0/22

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

Check an IP address →

Detect it in code

Spot AS31726 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 AS31726

Is AS31726 a datacenter or VPN network?

AS31726 (Telefiber AS) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS31726?

AS31726 is registered to Telefiber AS. It announces about 31,744 IPv4 addresses.

How do I detect traffic from AS31726?

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.