AS397142 City of Fort Collins

United States FORTCOLLINS-CONNEXION-01 ARIN 13 IPv4 prefixes 10 IPv6 prefixes

IPv4 addresses

36,096

IPv6 /48 networks

65,536

RPKI

21 valid2 no ROA

Peers and downstreams

Holder

AS name: FORTCOLLINS-CONNEXION-01
Description: 700 Wood St Fort Collins CO 80521 United States
Organisation: City of Fort Collins
Abuse contact: Not published
Assigned: 2018-10-29
Registered: 2018-10-30
Record last changed: 2018-10-30 15:29 UTC

167.94.176.0/20 192.251.149.0/24 198.99.80.0/22 204.107.184.0/24 204.133.79.0/24 204.133.83.0/24 23.163.32.0/24 38.147.232.0/21 38.15.32.0/19 38.175.160.0/19 38.246.0.0/19 38.75.232.0/21 38.80.148.0/22

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade B · 83/100

partly	Prefixes covered by valid ROAs 21 of 23 announced prefixes are RPKI valid, 2 have no ROA.	23/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
pass	Announces IPv6 10 IPv6 prefixes.	15/15
pass	More than one upstream 2 upstreams seen in BGP.	10/10
pass	Working abuse contact abuse@fcconnexion.com is published.	15/15
fail	Publishes a geofeed No geofeed found. Without one, location databases have to guess.	0/10
pass	No prefixes smaller than /24 or /48 All prefixes are /24 (IPv4) or /48 (IPv6) or larger.	10/10
fail	Registry record maintained Last changed 2018-10-30.	0/5

Built from the announced prefixes, RPKI, the registry record and geofeeds. Checks without data are not counted. Also in the API.

Show this on your website

HTML

<a href="https://ip-fd.net/asn/397142"><img src="https://ip-fd.net/badge/asn/397142/health.svg" alt="AS397142 network health on IP-FD.net"></a>

Markdown

[![AS397142 network health](https://ip-fd.net/badge/asn/397142/health.svg)](https://ip-fd.net/asn/397142)

Use rpki.svg instead of health.svg for the RPKI badge.

Routing changes

Last 30 days

2026-10-04 14:36 UTC

Relationship changed

AS32621

upstream to peer

WHOIS

aut-num:        AS397142
as-name:        FORT-COLLINS-CONNEXION
handle:         AS397142
registrant:     CFC (City of Fort Collins)
abuse:          FCCADC-ARIN (Fort Collins Connexion Abuse and DMCA Compliance) <abuse@fcconnexion.com>
administrative,routing,technical,noc,dns:FCCNE-ARIN (Fort Collins Connexion Network Engineering) <neteng@fcgov.com>
last changed:   2018-10-30T11:29:03-04:00
registration:   2018-10-30T11:29:03-04:00
source:         ARIN (RDAP)

Routing data

Updated just now

Registry record

Fetched just now from ARIN RDAP

Prefixes and neighbours come from the RIPE RIS route collectors. Data older than 5 minutes is refreshed when this page is opened.

API

curl -H "X-API-Key: YOUR_KEY" https://ip-fd.net/api/v1/asn/397142

const res = await fetch('https://ip-fd.net/api/v1/asn/397142', {
  headers: { 'X-API-Key': 'YOUR_KEY' }
});
const data = await res.json();
console.log(data);

import requests

r = requests.get('https://ip-fd.net/api/v1/asn/397142', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/397142');
curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-API-Key: YOUR_KEY']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$data = json_decode(curl_exec($ch), true);
print_r($data);

req, _ := http.NewRequest("GET", "https://ip-fd.net/api/v1/asn/397142", nil)
req.Header.Set("X-API-Key", "YOUR_KEY")
res, err := http.DefaultClient.Do(req)
if err != nil {
    log.Fatal(err)
}
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

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