Quad9 DNS (ARIN)

GEThttps://api.deepinfo.com/v1/lookup/ip-whois

IP WHOIS of 9.9.9.9 (ARIN): AS19281 Quad9, with its admin, abuse and NOC groups; individual contacts are redacted.

Param: ip
Value: 9.9.9.9

Asks for the IP WHOIS record of 9.9.9.9, the Quad9 public resolver.

asn is 19281 (QUAD9-AS-1 - Quad9, US), registry arin, network CLEAN-97 (9.9.9.0/24). A network remark points to a geofeed. objects holds the registrant Quad9, three role groups (Quad9 Admin, Quad9 Abuse, Quad9 Network Operations) and two individual technical contacts, whose details read REDACTED FOR PRIVACY.

Request

curl

curl 'https://api.deepinfo.com/v1/lookup/ip-whois?ip=9.9.9.9' \
  -H 'apikey: YOUR_API_KEY' \
  -H 'Accept: application/json'

Python

import requests

url = "https://api.deepinfo.com/v1/lookup/ip-whois"

params = {
    "ip": "9.9.9.9"
}

headers = {
    "apikey": "YOUR_API_KEY",
    "Accept": "application/json"
}

response = requests.get(url, params=params, headers=headers)
response.raise_for_status()
print(response.json())

JavaScript

const url = "https://api.deepinfo.com/v1/lookup/ip-whois?ip=9.9.9.9";

const response = await fetch(url, {
  method: "GET",
  headers: {
    "apikey": "YOUR_API_KEY",
    "Accept": "application/json"
  },
});

const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, err := http.NewRequest("GET", "https://api.deepinfo.com/v1/lookup/ip-whois?ip=9.9.9.9", nil)
	if err != nil {
		panic(err)
	}
	req.Header.Set("apikey", "YOUR_API_KEY")
	req.Header.Set("Accept", "application/json")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	body, err := io.ReadAll(res.Body)
	if err != nil {
		panic(err)
	}
	fmt.Println(string(body))
}

Java

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
    public static void main(String[] args) throws Exception {
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create("https://api.deepinfo.com/v1/lookup/ip-whois?ip=9.9.9.9"))
            .header("apikey", "YOUR_API_KEY")
            .header("Accept", "application/json")
            .GET()
            .build();

        HttpResponse<String> response = HttpClient.newHttpClient()
            .send(request, HttpResponse.BodyHandlers.ofString());

        System.out.println(response.body());
    }
}

using System;
using System.Net.Http;

using var client = new HttpClient();

var request = new HttpRequestMessage(HttpMethod.Get, "https://api.deepinfo.com/v1/lookup/ip-whois?ip=9.9.9.9");
request.Headers.Add("apikey", "YOUR_API_KEY");
request.Headers.Add("Accept", "application/json");

using var response = await client.SendAsync(request);
Console.WriteLine(await response.Content.ReadAsStringAsync());

PHP

<?php

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => 'https://api.deepinfo.com/v1/lookup/ip-whois?ip=9.9.9.9',
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'apikey: YOUR_API_KEY',
        'Accept: application/json',
    ],
]);

$response = curl_exec($curl);

if ($response === false) {
    throw new RuntimeException(curl_error($curl));
}

echo $response . PHP_EOL;

Ruby

require 'net/http'
require 'uri'

uri = URI('https://api.deepinfo.com/v1/lookup/ip-whois?ip=9.9.9.9')

request = Net::HTTP::Get.new(uri)
request['apikey'] = 'YOUR_API_KEY'
request['Accept'] = 'application/json'

response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: uri.scheme == 'https') do |http|
  http.request(request)
end

puts response.body

Response

200 OK · application/json

Response Body

{
  "ip": "9.9.9.9",
  "ipwhois": {
    "asn": "19281",
    "asn_cidr": "9.9.9.0/24",
    "asn_description": "QUAD9-AS-1 - Quad9, US",
    "asn_country_code": "US",
    "asn_registry": "arin",
    "entities": [
      "CLEAN-97"
    ],
    "asn_date": "2017-09-13",
    "nir": null,
    "query": "9.9.9.9",
    "raw": null,
    "network": {
      "cidr": "9.9.9.0/24",
      "name": "CLEAN-97",
      "country": null,
      "start_address": "9.9.9.0",
      "end_address": "9.9.9.255",
      "handle": "NET-9-9-9-0-1",
      "ip_version": "v4",
      "links": [
        "https://rdap.arin.net/registry/ip/9.9.9.0",
        "https://whois.arin.net/rest/net/NET-9-9-9-0-1"
      ],
      "parent_handle": "NET-9-0-0-0-0",
      "raw": null,
      "status": [
        "active"
      ],
      "type": "DIRECT ALLOCATION",
      "notices": [
        {
          "title": "Terms of Service",
          "description": "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use",
          "links": [
            "https://www.arin.net/resources/registry/whois/tou/"
          ]
        },
        {
          "title": "Whois Inaccuracy Reporting",
          "description": "If you see inaccuracies in the results, please visit: ",
          "links": [
            "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/"
          ]
        },
        {
          "title": "Copyright Notice",
          "description": "Copyright 1997-2026, American Registry for Internet Numbers, Ltd.",
          "links": null
        }
      ],
      "remarks": [
        {
          "title": "Registration Comments",
          "description": "Geofeed https://www.pch.net/geofeed.csv",
          "links": null
        }
      ],
      "events": [
        {
          "action": "last changed",
          "actor": null,
          "timestamp": "2025-10-21T19:27:59Z"
        },
        {
          "action": "registration",
          "actor": null,
          "timestamp": "2017-09-13T18:00:44Z"
        }
      ]
    },
    "objects": {
      "CLEAN-97": {
        "contact": {
          "email": null,
          "address": [
            {
              "type": null,
              "value": "CleanerDNS Inc. dba Quad9\n1442A Walnut Street, Suite 501\nBerkeley\nCA\n94709\nUnited States"
            }
          ],
          "phone": null,
          "kind": "org",
          "name": "Quad9",
          "role": null,
          "title": null
        },
        "entities": [
          "KARAD10-ARIN",
          "QUADA-ARIN",
          "QUADA1-ARIN",
          "QNO5-ARIN",
          "SHRES60-ARIN"
        ],
        "events": [
          {
            "action": "last changed",
            "actor": null,
            "timestamp": "2025-01-10T19:48:27Z"
          },
          {
            "action": "registration",
            "actor": null,
            "timestamp": "2017-09-07T15:04:40Z"
          }
        ],
        "events_actor": null,
        "handle": "CLEAN-97",
        "links": [
          "https://rdap.arin.net/registry/entity/CLEAN-97",
          "https://whois.arin.net/rest/org/CLEAN-97"
        ],
        "notices": null,
        "raw": null,
        "remarks": [
          {
            "title": "Registration Comments",
            "description": "https://quad9.net/\nGlobal Public Recursive DNS Resolver Service",
            "links": null
          }
        ],
        "roles": [
          "registrant"
        ],
        "status": null
      },
      "KARAD10-ARIN": {
        "contact": {
          "email": [
            {
              "type": null,
              "value": "REDACTED FOR PRIVACY"
            }
          ],
          "address": [
            {
              "type": null,
              "value": "REDACTED FOR PRIVACY"
            }
          ],
          "phone": [
            {
              "type": [
                "work",
                "voice"
              ],
              "value": "REDACTED FOR PRIVACY"
            },
            {
              "type": [
                "work",
                "cell"
              ],
              "value": "REDACTED FOR PRIVACY"
            }
          ],
          "kind": "individual",
          "name": "REDACTED FOR PRIVACY",
          "role": null,
          "title": null
        },
        "entities": null,
        "events": [
          {
            "action": "last changed",
            "actor": null,
            "timestamp": "2026-07-09T13:12:05Z"
          },
          {
            "action": "registration",
            "actor": null,
            "timestamp": "2025-01-06T17:38:24Z"
          }
        ],
        "events_actor": null,
        "handle": "KARAD10-ARIN",
        "links": [
          "https://rdap.arin.net/registry/entity/KARAD10-ARIN",
          "https://whois.arin.net/rest/poc/KARAD10-ARIN"
        ],
        "notices": [
          {
            "title": "Terms of Service",
            "description": "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use",
            "links": [
              "https://www.arin.net/resources/registry/whois/tou/"
            ]
          },
          {
            "title": "Whois Inaccuracy Reporting",
            "description": "If you see inaccuracies in the results, please visit: ",
            "links": [
              "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/"
            ]
          },
          {
            "title": "Copyright Notice",
            "description": "Copyright 1997-2026, American Registry for Internet Numbers, Ltd.",
            "links": null
          }
        ],
        "raw": null,
        "remarks": null,
        "roles": [
          "technical"
        ],
        "status": [
          "validated"
        ]
      },
      "QUADA-ARIN": {
        "contact": {
          "email": [
            {
              "type": null,
              "value": "user@quad9.net"
            }
          ],
          "address": [
            {
              "type": null,
              "value": "c/o SWITCH\nWerdstrasse 2\nZurich\n\n8004\nSwitzerland"
            }
          ],
          "phone": [
            {
              "type": [
                "work",
                "voice"
              ],
              "value": "+41 44 5279990"
            }
          ],
          "kind": "group",
          "name": "Quad9 Admin",
          "role": null,
          "title": null
        },
        "entities": null,
        "events": [
          {
            "action": "last changed",
            "actor": null,
            "timestamp": "2026-01-16T16:26:01Z"
          },
          {
            "action": "registration",
            "actor": null,
            "timestamp": "2017-09-21T17:01:42Z"
          }
        ],
        "events_actor": null,
        "handle": "QUADA-ARIN",
        "links": [
          "https://rdap.arin.net/registry/entity/QUADA-ARIN",
          "https://whois.arin.net/rest/poc/QUADA-ARIN"
        ],
        "notices": [
          {
            "title": "Terms of Service",
            "description": "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use",
            "links": [
              "https://www.arin.net/resources/registry/whois/tou/"
            ]
          },
          {
            "title": "Whois Inaccuracy Reporting",
            "description": "If you see inaccuracies in the results, please visit: ",
            "links": [
              "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/"
            ]
          },
          {
            "title": "Copyright Notice",
            "description": "Copyright 1997-2026, American Registry for Internet Numbers, Ltd.",
            "links": null
          }
        ],
        "raw": null,
        "remarks": null,
        "roles": [
          "administrative"
        ],
        "status": [
          "validated"
        ]
      },
      "QUADA1-ARIN": {
        "contact": {
          "email": [
            {
              "type": null,
              "value": "user@quad9.net"
            }
          ],
          "address": [
            {
              "type": null,
              "value": "1442 A Walnut Street Ste 501\nBerkeley\nCA\n94709\nUnited States"
            }
          ],
          "phone": [
            {
              "type": [
                "work",
                "voice"
              ],
              "value": "+1-415-831-3129"
            }
          ],
          "kind": "group",
          "name": "Quad9 Abuse",
          "role": null,
          "title": null
        },
        "entities": null,
        "events": [
          {
            "action": "last changed",
            "actor": null,
            "timestamp": "2026-04-23T15:48:22Z"
          },
          {
            "action": "registration",
            "actor": null,
            "timestamp": "2017-09-21T17:03:38Z"
          }
        ],
        "events_actor": null,
        "handle": "QUADA1-ARIN",
        "links": [
          "https://rdap.arin.net/registry/entity/QUADA1-ARIN",
          "https://whois.arin.net/rest/poc/QUADA1-ARIN"
        ],
        "notices": [
          {
            "title": "Terms of Service",
            "description": "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use",
            "links": [
              "https://www.arin.net/resources/registry/whois/tou/"
            ]
          },
          {
            "title": "Whois Inaccuracy Reporting",
            "description": "If you see inaccuracies in the results, please visit: ",
            "links": [
              "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/"
            ]
          },
          {
            "title": "Copyright Notice",
            "description": "Copyright 1997-2026, American Registry for Internet Numbers, Ltd.",
            "links": null
          }
        ],
        "raw": null,
        "remarks": null,
        "roles": [
          "abuse"
        ],
        "status": [
          "validated"
        ]
      },
      "QNO5-ARIN": {
        "contact": {
          "email": [
            {
              "type": null,
              "value": "user@quad9.net"
            }
          ],
          "address": [
            {
              "type": null,
              "value": "1442 A Walnut Street Ste 501\nBerkeley\nCA\n94709\nUnited States"
            }
          ],
          "phone": [
            {
              "type": [
                "work",
                "voice"
              ],
              "value": "+1-415-831-3129"
            }
          ],
          "kind": "group",
          "name": "Quad9 Network Operations",
          "role": null,
          "title": null
        },
        "entities": null,
        "events": [
          {
            "action": "last changed",
            "actor": null,
            "timestamp": "2025-10-05T11:42:48Z"
          },
          {
            "action": "registration",
            "actor": null,
            "timestamp": "2017-09-21T16:59:40Z"
          }
        ],
        "events_actor": null,
        "handle": "QNO5-ARIN",
        "links": [
          "https://rdap.arin.net/registry/entity/QNO5-ARIN",
          "https://whois.arin.net/rest/poc/QNO5-ARIN"
        ],
        "notices": [
          {
            "title": "Terms of Service",
            "description": "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use",
            "links": [
              "https://www.arin.net/resources/registry/whois/tou/"
            ]
          },
          {
            "title": "Whois Inaccuracy Reporting",
            "description": "If you see inaccuracies in the results, please visit: ",
            "links": [
              "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/"
            ]
          },
          {
            "title": "Copyright Notice",
            "description": "Copyright 1997-2026, American Registry for Internet Numbers, Ltd.",
            "links": null
          }
        ],
        "raw": null,
        "remarks": null,
        "roles": [
          "technical",
          "noc"
        ],
        "status": [
          "validated"
        ]
      },
      "SHRES60-ARIN": {
        "contact": {
          "email": [
            {
              "type": null,
              "value": "REDACTED FOR PRIVACY"
            }
          ],
          "address": [
            {
              "type": null,
              "value": "REDACTED FOR PRIVACY"
            }
          ],
          "phone": [
            {
              "type": [
                "work",
                "voice"
              ],
              "value": "REDACTED FOR PRIVACY"
            }
          ],
          "kind": "individual",
          "name": "REDACTED FOR PRIVACY",
          "role": null,
          "title": null
        },
        "entities": null,
        "events": [
          {
            "action": "last changed",
            "actor": null,
            "timestamp": "2025-11-18T07:32:46Z"
          },
          {
            "action": "registration",
            "actor": null,
            "timestamp": "2018-04-25T12:13:54Z"
          }
        ],
        "events_actor": null,
        "handle": "SHRES60-ARIN",
        "links": [
          "https://rdap.arin.net/registry/entity/SHRES60-ARIN",
          "https://whois.arin.net/rest/poc/SHRES60-ARIN"
        ],
        "notices": [
          {
            "title": "Terms of Service",
            "description": "By using the ARIN RDAP/Whois service, you are agreeing to the RDAP/Whois Terms of Use",
            "links": [
              "https://www.arin.net/resources/registry/whois/tou/"
            ]
          },
          {
            "title": "Whois Inaccuracy Reporting",
            "description": "If you see inaccuracies in the results, please visit: ",
            "links": [
              "https://www.arin.net/resources/registry/whois/inaccuracy_reporting/"
            ]
          },
          {
            "title": "Copyright Notice",
            "description": "Copyright 1997-2026, American Registry for Internet Numbers, Ltd.",
            "links": null
          }
        ],
        "raw": null,
        "remarks": null,
        "roles": [
          "technical"
        ],
        "status": [
          "validated"
        ]
      }
    }
  },
  "check_date": "2026-09-24T07:51:41Z"
}

Content-Type: application/json
ratelimit-limit: 1
ratelimit-remaining: 0
ratelimit-reset: 1
x-ratelimit-limit-second: 1
x-ratelimit-remaining-second: 0
deepinfo-request-id: 5f0c6a8e-1b2d-4c3e-9f4a-7b8c9d0e1f2a

Request

What this example sends. Every parameter is documented on IP WHOIS; the exact request is in the code panel.

Parameter	Value
`ip`query	`9.9.9.9`

Reference updated September 24, 2026

Request

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