Network · AS10255

AS10255 Sinister and Solitary

AS10255 (Sinister and Solitary) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS10255

OwnerSinister and Solitary
KindInternet service provider
Servers, not peopleno
IPv4 addresses2,560
IPv4 ranges7
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

199.204.152.0/22
204.69.206.0/24
204.107.200.0/24
199.74.249.0/24
199.201.145.0/24
198.49.250.0/24
192.31.227.0/24

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

Check an IP address →

Detect it in code

Spot AS10255 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 AS10255

Is AS10255 a datacenter or VPN network?

AS10255 (Sinister and Solitary) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS10255?

AS10255 is registered to Sinister and Solitary. It announces about 2,560 IPv4 addresses.

How do I detect traffic from AS10255?

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.