AS39974 Altitude ISP LLC

United States ALTITUDE-ISP ARIN 3 IPv4 prefixes 0 IPv6 prefixes

IPv4 addresses

768

IPv6 /48 networks

RPKI

3 valid0 no ROA

Peers and downstreams

Holder

AS name: ALTITUDE-ISP
Description: Altitude ISP LLC
Organisation: Altitude ISP LLC
Abuse contact: Not published
Assigned: 2022-12-29
Registered: 2022-12-30
Record last changed: 2026-06-16 19:53 UTC

66.118.50.0/24 66.118.51.0/24 66.187.199.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 60/100

pass	Prefixes covered by valid ROAs 3 of 3 announced prefixes are RPKI valid.	25/25
pass	No RPKI invalid announcements None of the announcements is RPKI invalid.	10/10
fail	Announces IPv6 No IPv6 prefixes are announced.	0/15
pass	More than one upstream 3 upstreams seen in BGP.	10/10
fail	Working abuse contact No abuse contact is published in the registry.	0/15
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
pass	Registry record maintained Last changed 2026-06-16.	5/5

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/39974"><img src="https://ip-fd.net/badge/asn/39974/health.svg" alt="AS39974 network health on IP-FD.net"></a>

Markdown

[![AS39974 network health](https://ip-fd.net/badge/asn/39974/health.svg)](https://ip-fd.net/asn/39974)

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

Routing changes

Last 30 days

No changes recorded in the last 30 days. Changes are recorded each time the routing data of this AS is refreshed. Get alerts in real time.

WHOIS

aut-num:        AS39974
as-name:        ALTITUDE-ISP
handle:         AS39974
remarks:        https://www.altitudeisp.com
remarks:        NOC hours are 8:00 am to 6:00 pm CST
registrant:     AIL-350 (Altitude ISP LLC)
routing,technical,abuse,noc,administrative,dns:STONE444-ARIN (Nathan Stone) <nathan.stone@altitudeisp.com>
last changed:   2026-06-16T15:53:07-04:00
registration:   2022-12-30T11:04:00-05:00
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/39974

const res = await fetch('https://ip-fd.net/api/v1/asn/39974', {
  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/39974', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/39974');
curl_setopt($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/39974", 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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