Network · AS203877

AS203877 ASTRA TELEKOM DOO BEOGRAD

AS203877 (ASTRA TELEKOM DOO BEOGRAD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS203877

OwnerASTRA TELEKOM DOO BEOGRAD
KindInternet service provider
Servers, not peopleno
IPv4 addresses14,592
IPv4 ranges20
IPv6 ranges0

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

178.22.216.0/21
91.226.240.0/22
85.202.112.0/22
62.240.8.0/22
62.240.16.0/22
62.240.0.0/22
185.118.168.0/22
185.102.236.0/22
109.94.224.0/22
109.94.120.0/22
85.202.126.0/23
85.202.120.0/23

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

Check an IP address →

Detect it in code

Spot AS203877 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 AS203877

Is AS203877 a datacenter or VPN network?

AS203877 (ASTRA TELEKOM DOO BEOGRAD) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS203877?

AS203877 is registered to ASTRA TELEKOM DOO BEOGRAD. It announces about 14,592 IPv4 addresses.

How do I detect traffic from AS203877?

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.