Network · AS199977

AS199977 Fifty5Blue Sweden AB

AS199977 (Fifty5Blue Sweden AB) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS199977

OwnerFifty5Blue Sweden AB
KindInternet service provider
Servers, not peopleno
IPv4 addresses512
IPv4 ranges2
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

192.165.204.0/24
192.165.203.0/24

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

Check an IP address →

Detect it in code

Spot AS199977 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 AS199977

Is AS199977 a datacenter or VPN network?

AS199977 (Fifty5Blue Sweden AB) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS199977?

AS199977 is registered to Fifty5Blue Sweden AB. It announces about 512 IPv4 addresses.

How do I detect traffic from AS199977?

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.