Network · AS17025

AS17025 Zayo Bandwidth

AS17025 (Zayo Bandwidth) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS17025

  • OwnerZayo Bandwidth
  • KindInternet service provider
  • Servers, not peopleno
  • IPv4 addresses16,640
  • IPv4 ranges48
  • IPv6 ranges1
Risk score0

Nothing suspicious found.

Largest IPv4 ranges

  • 199.104.0.0/21
  • 198.60.208.0/21
  • 213.152.252.0/23
  • 164.74.122.0/23
  • 149.32.156.0/23
  • 69.147.6.0/24
  • 69.147.5.0/24
  • 69.147.3.0/24
  • 69.147.1.0/24
  • 66.46.216.0/24
  • 64.201.237.0/24
  • 64.125.229.0/24

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

Check an IP address →

Detect it in code

Spot AS17025 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 AS17025

Is AS17025 a datacenter or VPN network?

AS17025 (Zayo Bandwidth) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS17025?

AS17025 is registered to Zayo Bandwidth. It announces about 16,640 IPv4 addresses.

How do I detect traffic from AS17025?

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.