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Linux / UNIX Command To Find Out Who Owns a Domain Name

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 How do I find out who owns a Internet domain name and its ip address?


The WHOIS system is used by domains and ip address on the Internet. It is used by system administrators to obtain contact information for IP address assignments or domain name administrators. Use whois command as follows:
$ whois domain-name
$ whois -h whois.example.com domain.com
$ whois google.com
Sample outputs:

Registrant:
        Dns Admin
        Google Inc.
        Please contact contact-admin@google.com 1600 Amphitheatre Parkway
         Mountain View CA 94043
        US
        dns-admin@google.com +1.6502530000 Fax: +1.6506188571

    Domain Name: google.com

        Registrar Name: Markmonitor.com
        Registrar Whois: whois.markmonitor.com
        Registrar Homepage: http://www.markmonitor.com

    Administrative Contact:
        DNS Admin
        Google Inc.
        1600 Amphitheatre Parkway
         Mountain View CA 94043
        US
        dns-admin@google.com +1.6506234000 Fax: +1.6506188571
    Technical Contact, Zone Contact:
        DNS Admin
        Google Inc.
        2400 E. Bayshore Pkwy
         Mountain View CA 94043
        US
        dns-admin@google.com +1.6503300100 Fax: +1.6506181499

    Created on..............: 1997-09-15.
    Expires on..............: 2011-09-13.
    Record last updated on..: 2010-03-30.

Find out IP address and its owner:
$ host -t a google.com
Sample outputs:
google.com has address 209.85.231.104
Now, get ip address information:
$ whois 209.85.231.104
Sample outputs:

NetRange:       209.85.128.0 – 209.85.255.255

CIDR:           209.85.128.0/17

OriginAS:

NetName:        GOOGLE

NetHandle:      NET-209-85-128-0-1

Parent:         NET-209-0-0-0-0

NetType:        Direct Allocation

NameServer:     NS2.GOOGLE.COM

NameServer:     NS3.GOOGLE.COM

NameServer:     NS4.GOOGLE.COM

NameServer:     NS1.GOOGLE.COM

RegDate:        2006-01-13

Updated:        2006-06-01

Ref:            http://whois.arin.net/rest/net/NET-209-85-128-0-1

OrgName:        Google Inc.

OrgId:          GOGL

Address:        1600 Amphitheatre Parkway

City:           Mountain View

StateProv:      CA

PostalCode:     94043

Country:        US

RegDate:        2000-03-30

Updated:        2009-08-07

Ref:            http://whois.arin.net/rest/org/GOGL


OrgTechHandle: ZG39-ARIN

OrgTechName:   Google Inc

OrgTechPhone:  +1-650-253-0000

OrgTechEmail:  arin-contact@google.com

OrgTechRef:    http://whois.arin.net/rest/poc/ZG39-ARIN


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# ARIN WHOIS data and services are subject to the Terms of Use

# available at: https://www.arin.net/whois_tou.html

#

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