Network · AS31673

AS31673 Uniserver Internet B.V.

AS31673 (Uniserver Internet B.V.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS31673

OwnerUniserver Internet B.V.
KindInternet service provider
Servers, not peopleno
IPv4 addresses56,576
IPv4 ranges35
IPv6 ranges12

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

62.148.160.0/19
85.255.208.0/20
84.38.224.0/20
81.93.48.0/20
81.26.208.0/20
80.247.160.0/20
94.126.64.0/21
83.143.184.0/21
5.39.168.0/21
31.171.200.0/21
178.248.152.0/21
87.237.100.0/22

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

Check an IP address →

Detect it in code

Spot AS31673 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 AS31673

Is AS31673 a datacenter or VPN network?

AS31673 (Uniserver Internet B.V.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS31673?

AS31673 is registered to Uniserver Internet B.V.. It announces about 56,576 IPv4 addresses.

How do I detect traffic from AS31673?

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.