Network · AS7311

AS7311 Frontier Networks

AS7311 (Frontier Networks) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS7311

OwnerFrontier Networks
KindInternet service provider
Servers, not peopleno
IPv4 addresses125,440
IPv4 ranges25
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

45.2.0.0/16
24.146.64.0/18
69.17.224.0/19
24.104.160.0/19
96.125.128.0/20
192.154.144.0/20
67.21.144.0/21
38.143.48.0/21
216.126.80.0/21
216.126.72.0/21
162.33.216.0/21
162.33.168.0/21

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

Check an IP address →

Detect it in code

Spot AS7311 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 AS7311

Is AS7311 a datacenter or VPN network?

AS7311 (Frontier Networks) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS7311?

AS7311 is registered to Frontier Networks. It announces about 125,440 IPv4 addresses.

How do I detect traffic from AS7311?

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.