AS11421 HYW

United States HYW-BACKBONE ARIN 6 IPv4 prefixes 8 IPv6 prefixes

IPv4 addresses

2,304

IPv6 /48 networks

RPKI

12 valid1 invalid1 no ROA

Peers and downstreams

Holder

AS name: HYW-BACKBONE
Description: 117 S Lexington Street Ste 100 Harrisonville MO 64701-2444 United States
Organisation: HYW
Abuse contact: Not published
Assigned: 2026-03-16
Registered: 2026-03-17
Record last changed: 2026-07-13 14:20 UTC

16.5.55.0/24 23.154.164.0/24 44.30.130.0/24 87.86.0.0/22 87.86.22.0/24 87.86.87.0/24

Upstream graph

Upstreams and their upstreams, from BGP paths

Network health

Grade C · 61/100

partly	Prefixes covered by valid ROAs 12 of 14 announced prefixes are RPKI valid, 1 have no ROA.	21/25
fail	No RPKI invalid announcements 1 announced prefix is RPKI invalid and dropped by networks that validate.	0/10
pass	Announces IPv6 8 IPv6 prefixes.	15/15
pass	More than one upstream 6 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 2026-07-13.	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/11421"><img src="https://ip-fd.net/badge/asn/11421/health.svg" alt="AS11421 network health on IP-FD.net"></a>

Markdown

[![AS11421 network health](https://ip-fd.net/badge/asn/11421/health.svg)](https://ip-fd.net/asn/11421)

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

Routing changes

Last 30 days

2026-10-05 04:57 UTC	Neighbour gone	AS151673	downstream
2026-10-05 04:57 UTC	Neighbour gone	AS59105	peer
2026-10-05 04:57 UTC	New neighbour	AS204921	downstream
2026-10-05 04:57 UTC	Prefix gone	77.67.18.0/24
2026-10-05 04:57 UTC	New prefix	2a14:7586:6116::/48

WHOIS

aut-num:        AS11421
as-name:        HYWG-BACKBONE
handle:         AS11421
registrant:     HGL-134 (HYW GLOBAL LLC)
routing,technical,administrative,abuse,noc,dns:HYWNO-ARIN (HYW-NOC) <noc@cxix.net>
last changed:   2026-07-13T10:20:31-04:00
registration:   2026-03-17T13:11:49-04:00
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/11421

const res = await fetch('https://ip-fd.net/api/v1/asn/11421', {
  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/11421', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/11421');
curl_setopt($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/11421", 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))

Works without a key at a lower rate. Get a free key.

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