Network · AS42908

AS42908 O2 Czech Republic, a.s.

AS42908 (O2 Czech Republic, a.s.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS42908

  • OwnerO2 Czech Republic, a.s.
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses183,296
  • IPv4 ranges35
  • IPv6 ranges9
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 213.19.0.0/17
  • 94.241.64.0/18
  • 78.136.128.0/18
  • 213.250.192.0/18
  • 91.187.32.0/19
  • 88.81.64.0/19
  • 213.155.32.0/19
  • 176.102.128.0/19
  • 109.108.96.0/19
  • 92.61.80.0/20
  • 80.90.128.0/20
  • 80.87.176.0/20

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

Check an IP address →

Detect it in code

Spot AS42908 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 AS42908

Is AS42908 a datacenter or VPN network?

AS42908 (O2 Czech Republic, a.s.) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS42908?

AS42908 is registered to O2 Czech Republic, a.s.. It announces about 183,296 IPv4 addresses.

How do I detect traffic from AS42908?

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.