AS19281 Quad9

United States AS-QUAD9-ARIN ARIN 5 IPv4 prefixes 1 IPv6 prefix

IPv4 addresses

1,280

IPv6 /48 networks

RPKI

6 valid0 no ROA

Peers and downstreams

Holder

AS name: AS-QUAD9-ARIN
Description: Primary Anycast Service Network. https://www.quad9.net/
Organisation: Quad9
Abuse contact: Not published
Assigned: 2017-09-12
Registered: 2017-09-13
Record last changed: 2019-11-13 23:08 UTC

147.72.242.0/24 149.112.112.0/24 149.112.149.0/24 199.249.255.0/24 9.9.9.0/24

Routing changes

Last 30 days

2026-10-04 06:54 UTC	Relationship changed	AS7195	upstream to peer
2026-10-04 06:54 UTC	Relationship changed	AS58511	upstream to peer
2026-10-04 06:54 UTC	Relationship changed	AS51095	upstream to peer
2026-10-04 06:54 UTC	Relationship changed	AS50629	upstream to peer
2026-10-04 06:54 UTC	Relationship changed	AS49115	upstream to peer
2026-10-04 06:54 UTC	Relationship changed	AS42541	upstream to peer
2026-10-04 06:54 UTC	Relationship changed	AS2495	upstream to peer
2026-10-04 06:54 UTC	Relationship changed	AS1930	upstream to peer

WHOIS

aut-num:        AS19281
as-name:        QUAD9-AS-1
handle:         AS19281
remarks:        Quad9 is a non-profit that provides free, secure, open DNS recursive resolution services on our anycast address space. Please see https://www.quad9.net/ for details.
registrant:     CLEAN-97 (Quad9)
last changed:   2019-11-13T18:08:23-05:00
registration:   2017-09-13T13:46:55-04:00
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/19281

const res = await fetch('https://ip-fd.net/api/v1/asn/19281', {
  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/19281', headers={'X-API-Key': 'YOUR_KEY'}, timeout=10)
r.raise_for_status()
print(r.json())

<?php
$ch = curl_init('https://ip-fd.net/api/v1/asn/19281');
curl_setopt($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/19281", 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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AS49544	i3D.net B.V i3Dnet

AS1930	Fundacao para a Ciencia e a Tecnologia, I.P. RCCN
AS2495	Kansas Research and Education Network KANREN
AS7195	EDGEUNO S.A.S AS7195
AS42541	Fiberby ApS FIBERBY
AS49115	E-MAX INTERNET & IT s.r.o. EMAX_AS1
AS50629	LWLcom GmbH LWLCOM
AS51095	EdgeUno, Inc. E1-EMEA
AS58511	Anycast Global Backbone ANYCAST-GLOBAL-BACKBONE
AS152735	Cpdcl-As-Ap CPDCL-AS-AP
AS198385	AlpineDC SA AlpineDC
AS328977	Wavex Internet Service Provider LTD