Network · AS201697

AS201697 Tobias Fonsmark trading as Semaphor

AS201697 (Tobias Fonsmark trading as Semaphor) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS201697

OwnerTobias Fonsmark trading as Semaphor
KindInternet service provider
Servers, not peopleno
IPv4 addresses1,280
IPv4 ranges2
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

45.156.8.0/22
195.190.25.0/24

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

Check an IP address →

Detect it in code

Spot AS201697 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 AS201697

Is AS201697 a datacenter or VPN network?

AS201697 (Tobias Fonsmark trading as Semaphor) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS201697?

AS201697 is registered to Tobias Fonsmark trading as Semaphor. It announces about 1,280 IPv4 addresses.

How do I detect traffic from AS201697?

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.