Network · AS55821

AS55821 RADIUS TELECOMS, INC.

AS55821 (RADIUS TELECOMS, INC.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS55821

OwnerRADIUS TELECOMS, INC.
KindInternet service provider
Servers, not peopleno
IPv4 addresses46,336
IPv4 ranges21
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

155.137.96.0/19
110.235.160.0/19
209.141.0.0/20
155.137.64.0/20
146.88.64.0/20
110.235.128.0/20
155.137.88.0/21
110.235.144.0/21
45.114.132.0/22
27.126.152.0/22
203.96.180.0/22
155.137.80.0/22

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

Check an IP address →

Detect it in code

Spot AS55821 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 AS55821

Is AS55821 a datacenter or VPN network?

AS55821 (RADIUS TELECOMS, INC.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS55821?

AS55821 is registered to RADIUS TELECOMS, INC.. It announces about 46,336 IPv4 addresses.

How do I detect traffic from AS55821?

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.