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Domain / IP Whois API

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Domain / IP Whois

Displays owner/contact information for a domain name. Can also be used to determine if a domain name is registered or not.


This tool is not available to free API key users. Access is restricted to paid API keys only.



domain - the domain or ip to perform a whois lookup on
output - the output format required ('xml' or 'json')
apikey - your api key

Sample Query - Domain Name



XML Response (output=xml)

<?xml version='1.0' encoding='ISO-8859-1'?>
    <registrant>Twitter, Inc.</registrant>
    <organisation>Twitter, Inc.</organisation>
      <registrar>CSC CORPORATE DOMAINS, INC.</registrar>
    <rawdata>Domain Name:
      Registry Domain ID: 18195971_DOMAIN_COM-VRSN
      Registrar WHOIS Server:
      Registrar URL:
      Updated Date: 2016-11-08T05:07:31Z
      Creation Date: 2000-01-21T16:28:17Z
      Registrar Registration Expiration Date: 2020-01-21T16:28:17Z
      Registrar IANA ID: 299
      Registrar Abuse Contact Email:
      Registrar Abuse Contact Phone: +1.8887802723
      Domain Status: serverTransferProhibited
      Domain Status: serverDeleteProhibited
      Domain Status: clientTransferProhibited
      Domain Status: serverUpdateProhibited
      Registry Registrant ID:
      Registrant Name: Twitter, Inc.
      Registrant Organization: Twitter, Inc.
      Registrant Street: 1355 Market Street
      Registrant City: San Francisco
      Registrant State/Province: CA
      Registrant Postal Code: 94103
      Registrant Country: US
      Registrant Phone: +1.4152229670
      Registrant Phone Ext:
      Registrant Fax: +1.4152220922
      Registrant Fax Ext:
      Registrant Email:
      Registry Admin ID:
      Admin Name: Domain Admin
      Admin Organization: Twitter, Inc.
      Admin Street: 1355 Market Street
      Admin City: San Francisco
      Admin State/Province: CA
      Admin Postal Code: 94103
      Admin Country: US
      Admin Phone: +1.4152229670
      Admin Phone Ext:
      Admin Fax: +1.4152220922
      Admin Fax Ext:
      Admin Email:
      Registry Tech ID:
      Tech Name: Tech Admin
      Tech Organization: Twitter, Inc.
      Tech Street: 1355 Market Street
      Tech City: San Francisco
      Tech State/Province: CA
      Tech Postal Code: 94103
      Tech Country: US
      Tech Phone: +1.4152229670
      Tech Phone Ext:
      Tech Fax: +1.4152220922
      Tech Fax Ext:
      Tech Email:
      Name Server:
      Name Server:
      Name Server:
      Name Server: NS3.P34.DYNECT.NET
      Name Server:
      Name Server: NS4.P34.DYNECT.NET
      DNSSEC: unsigned
      URL of the ICANN WHOIS Data Problem Reporting System:
      &gt;&gt;&gt; Last update of WHOIS database: 2016-11-08T05:07:31Z &lt;&lt;&lt;
      For more information on Whois status codes, please visit
      Corporation Service Company(c) (CSC)  The Trusted Partner of More than 50% of the 100 Best Global Brands.
      Contact us to learn more about our enterprise solutions for Global Domain Name Registration and Management, Trademark Research and Watching, Brand, Logo and Auction Monitoring, as well SSL Certificate Services and DNS Hosting.
      NOTICE: You are not authorized to access or query our WHOIS database through the use of high-volume, automated, electronic processes or for the purpose or purposes of using the data in any manner that violates these terms of use. The Data in the CSC WHOIS database is provided by CSC for information purposes only, and to assist persons in obtaining information about or related to a domain name registration record. CSC does not guarantee its accuracy. By submitting a WHOIS query, you agree to abide by the following terms of use: you agree that you may use this Data only for lawful purposes and that under no circumstances will you use this Data to: (1) allow, enable, or otherwise support the transmission of mass unsolicited, commercial advertising or solicitations via direct mail, e-mail, telephone, or facsimile; or (2) enable high volume, automated, electronic processes that apply to CSC (or its computer systems). CSC reserves the right to terminate your access to the WHOIS database in its sole discretion for any violations by you of these terms of use. CSC reserves the right to modify these terms at any time.
      Register your domain name at</rawdata>

JSON Response (output=json)

    "query": {
        "tool": "whois_PRO",
        "domain": ""
    "response": {
        "registrant": "Twitter, Inc",
        "registration": {
            "created": "2011-08-31",
            "expires": "2019-01-22",
            "updated": "2011-08-30",
            "statuses": [
        "name_servers": [
            " (",
            " (",
            " (",
            " ("
        "rawdata": "\\nDomain Name..........\\n  Creation Date........ 2000-01-22\\n  
        Registration Date.... 2011-08-31\\n  Expiry Date.......... 2019-01-22\\n  Organisation 
        Name.... Twitter, Inc.\\n  Organisation Address. 795 Folsom Street\\n  Organisation Address. 
        Suite 600\\n  Organisation Address. San Francisco\\n  Organisation Address. 94107\\n  
        Organisation Address. CA\\n  Organisation Address. UNITED STATES\\n\\nAdmin Name........... 
        Domain Admin\\n  Admin Address........ 795 Folsom Street\\n  Admin Address........ Suite 600
        \\n  Admin Address........ San Francisco\\n  Admin Address........ 94107\\n  Admin Address
        ........ CA\\n  Admin Address........ UNITED STATES\\n  Admin Email..........\\n  Admin Phone.......... +415.2229670\\n  Admin Fax............ 
        +415.2220922\\n\\nTech Name............ Tech Admin\\n  Tech Address......... 795 Folsom 
        Street\\n  Tech Address......... Suite 600\\n  Tech Address......... San Francisco\\n  Tech 
        Address......... 94107\\n  Tech Address......... CA\\n  Tech Address......... UNITED STATES\\n  
        Tech Email...........\\n  Tech Phone........... +415.2229670\\n  
        Tech Fax............. +415.2220922\\n  Name Server.......... NS2.P34.DYNECT.NET\\n  Name 
        Server.......... NS3.P34.DYNECT.NET\\n  Name Server.......... NS4.P34.DYNECT.NET\\n  Name 
        Server.......... NS1.P34.DYNECT.NET\\n\\n\\n"

Sample Query - IP Address



XML Response (output=xml)

<?xml version='1.0' encoding='ISO-8859-1'?>
    <owner>Level 3 Communications, Inc.</owner>
      # ARIN WHOIS data and services are subject to the Terms of Use
      # available at:
      # If you see inaccuracies in the results, please report at
      # The following results may also be obtained via:
      # start
      NetRange: -
      NetName:        LVLT-ORG-8-8
      NetHandle:      NET-8-0-0-0-1
      Parent:          ()
      NetType:        Direct Allocation
      Organization:   Level 3 Communications, Inc. (LVLT)
      RegDate:        1992-12-01
      Updated:        2012-02-24
      OrgName:        Level 3 Communications, Inc.
      OrgId:          LVLT
      Address:        1025 Eldorado Blvd.
      City:           Broomfield
      StateProv:      CO
      PostalCode:     80021
      Country:        US
      RegDate:        1998-05-21
      Updated:        2017-01-28
      OrgNOCHandle: NOCSU27-ARIN
      OrgNOCName:   NOC Support
      OrgNOCPhone:  +1-877-453-8353
      OrgAbuseHandle: APL8-ARIN
      OrgAbuseName:   Abuse POC LVLT
      OrgAbusePhone:  +1-877-453-8353
      OrgTechHandle: IPADD5-ARIN
      OrgTechName:   ipaddressing
      OrgTechPhone:  +1-877-453-8353
      # end
      # start
      NetRange: -
      NetName:        LVLT-GOGL-8-8-8
      NetHandle:      NET-8-8-8-0-1
      Parent:         LVLT-ORG-8-8 (NET-8-0-0-0-1)
      NetType:        Reallocated
      Organization:   Google Inc. (GOGL)
      RegDate:        2014-03-14
      Updated:        2014-03-14
      OrgName:        Google Inc.
      OrgId:          GOGL
      Address:        1600 Amphitheatre Parkway
      City:           Mountain View
      StateProv:      CA
      PostalCode:     94043
      Country:        US
      RegDate:        2000-03-30
      Updated:        2017-01-28
      OrgTechHandle: ZG39-ARIN
      OrgTechName:   Google Inc
      OrgTechPhone:  +1-650-253-0000
      OrgAbuseHandle: ABUSE5250-ARIN
      OrgAbuseName:   Abuse
      OrgAbusePhone:  +1-650-253-0000
      # end
      # ARIN WHOIS data and services are subject to the Terms of Use
      # available at:
      # If you see inaccuracies in the results, please report at

JSON Response (output=json)

	"query": {
		"tool": "whois_PRO",
		"ip": ""
	"response": {
		"rir": "ARIN",
		"cidr": "\/24",
		"as": "",
		"owner": "Level 3 Communications, Inc.",
		"country": "US",
		"created": "1992-12-01",
		"updated": "2012-02-24",
		"rawdata": "#\n# ARIN WHOIS data and services are subject to the Terms of Use\n# available at: https:\/\/\/whois_tou.html\n#\n# If you see inaccuracies in the results, please report at\n# https:\/\/\/public\/whoisinaccuracy\/index.xhtml\n#\n\n\n#\n# The following results may also be obtained via:\n# https:\/\/\/rest\/nets;q=\n#\n\n\n# start\n\nNetRange: -\nCIDR: \/8\nNetName:        LVLT-ORG-8-8\nNetHandle:      NET-8-0-0-0-1\nParent:          ()\nNetType:        Direct Allocation\nOriginAS:       \nOrganization:   Level 3 Communications, Inc. (LVLT)\nRegDate:        1992-12-01\nUpdated:        2012-02-24\nRef:            https:\/\/\/rest\/net\/NET-8-0-0-0-1\n\n\n\nOrgName:        Level 3 Communications, Inc.\nOrgId:          LVLT\nAddress:        1025 Eldorado Blvd.\nCity:           Broomfield\nStateProv:      CO\nPostalCode:     80021\nCountry:        US\nRegDate:        1998-05-21\nUpdated:        2017-01-28\nComment:        ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE\nRef:            https:\/\/\/rest\/org\/LVLT\n\n\nOrgNOCHandle: NOCSU27-ARIN\nOrgNOCName:   NOC Support\nOrgNOCPhone:  +1-877-453-8353 \nOrgNOCEmail:\nOrgNOCRef:    https:\/\/\/rest\/poc\/NOCSU27-ARIN\n\nOrgAbuseHandle: APL8-ARIN\nOrgAbuseName:   Abuse POC LVLT\nOrgAbusePhone:  +1-877-453-8353 \nOrgAbuseEmail:\nOrgAbuseRef:    https:\/\/\/rest\/poc\/APL8-ARIN\n\nOrgTechHandle: IPADD5-ARIN\nOrgTechName:   ipaddressing\nOrgTechPhone:  +1-877-453-8353 \nOrgTechEmail:\nOrgTechRef:    https:\/\/\/rest\/poc\/IPADD5-ARIN\n\n# end\n\n\n# start\n\nNetRange: -\nCIDR: \/24\nNetName:        LVLT-GOGL-8-8-8\nNetHandle:      NET-8-8-8-0-1\nParent:         LVLT-ORG-8-8 (NET-8-0-0-0-1)\nNetType:        Reallocated\nOriginAS:       \nOrganization:   Google Inc. (GOGL)\nRegDate:        2014-03-14\nUpdated:        2014-03-14\nRef:            https:\/\/\/rest\/net\/NET-8-8-8-0-1\n\n\n\nOrgName:        Google Inc.\nOrgId:          GOGL\nAddress:        1600 Amphitheatre Parkway\nCity:           Mountain View\nStateProv:      CA\nPostalCode:     94043\nCountry:        US\nRegDate:        2000-03-30\nUpdated:        2017-01-28\nRef:            https:\/\/\/rest\/org\/GOGL\n\n\nOrgTechHandle: ZG39-ARIN\nOrgTechName:   Google Inc\nOrgTechPhone:  +1-650-253-0000 \nOrgTechEmail:\nOrgTechRef:    https:\/\/\/rest\/poc\/ZG39-ARIN\n\nOrgAbuseHandle: ABUSE5250-ARIN\nOrgAbuseName:   Abuse\nOrgAbusePhone:  +1-650-253-0000 \nOrgAbuseEmail:\nOrgAbuseRef:    https:\/\/\/rest\/poc\/ABUSE5250-ARIN\n\n# end\n\n\n\n#\n# ARIN WHOIS data and services are subject to the Terms of Use\n# available at: https:\/\/\/whois_tou.html\n#\n# If you see inaccuracies in the results, please report at\n# https:\/\/\/public\/whoisinaccuracy\/index.xhtml\n#"

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