Network · AS397142

AS397142 City of Fort Collins

AS397142 (City of Fort Collins) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS397142

OwnerCity of Fort Collins
KindInternet service provider
Servers, not peopleno
IPv4 addresses36,096
IPv4 ranges13
IPv6 ranges1

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

38.246.0.0/19
38.175.160.0/19
38.15.32.0/19
167.94.176.0/20
38.75.232.0/21
38.147.232.0/21
38.80.148.0/22
198.99.80.0/22
23.163.32.0/24
204.133.83.0/24
204.133.79.0/24
204.107.184.0/24

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

Check an IP address →

Detect it in code

Spot AS397142 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 AS397142

Is AS397142 a datacenter or VPN network?

AS397142 (City of Fort Collins) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS397142?

AS397142 is registered to City of Fort Collins. It announces about 36,096 IPv4 addresses.

How do I detect traffic from AS397142?

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.