Network · AS203600

AS203600 VIVAFIBRA TELECOMUNICACIONES, S.L.

AS203600 (VIVAFIBRA TELECOMUNICACIONES, S.L.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS203600

OwnerVIVAFIBRA TELECOMUNICACIONES, S.L.
KindInternet service provider
Servers, not peopleno
IPv4 addresses7,424
IPv4 ranges10
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

188.215.56.0/21
89.47.236.0/22
84.236.200.0/22
188.215.104.0/22
185.129.28.0/22
84.236.191.0/24
5.154.114.0/24
37.230.86.0/24
178.156.24.0/24
178.156.106.0/24

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

Check an IP address →

Detect it in code

Spot AS203600 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 AS203600

Is AS203600 a datacenter or VPN network?

AS203600 (VIVAFIBRA TELECOMUNICACIONES, S.L.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS203600?

AS203600 is registered to VIVAFIBRA TELECOMUNICACIONES, S.L.. It announces about 7,424 IPv4 addresses.

How do I detect traffic from AS203600?

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.