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WHOIS(1)		  BSD General Commands Manual		      WHOIS(1)

NAME
     whois — Internet domain name and network number directory service

SYNOPSIS
     whois [-aAdgilmQrR6] [-c country-code | -h host] [-p port] name ...

DESCRIPTION
     The whois utility looks up records in the databases maintained by several
     Network Information Centers (NICs).

     The options are as follows:

     -a	     Use the American Registry for Internet Numbers (ARIN) database.
	     It contains network numbers used in those parts of the world cov‐
	     ered neither by APNIC nor by RIPE.

	     (Hint: All point of contact handles in the ARIN whois database
	     end with "-ARIN".)

     -A	     Use the Asia/Pacific Network Information Center (APNIC) database.
	     It contains network numbers used in East Asia, Australia, New
	     Zealand, and the Pacific islands.

     -c country-code
	     This is the equivalent of using the -h option with an argument of
	     "country-code.whois-servers.net".

     -d	     Use the US Department of Defense database.	 It contains points of
	     contact for subdomains of .MIL.

     -g	     Use the US non-military federal government database, which con‐
	     tains points of contact for subdomains of .GOV.

     -h host
	     Use the specified host instead of the default variant.  Either a
	     host name or an IP address may be specified.

	     By default whois constructs the name of a whois server to use
	     from the top-level domain (TLD) of the supplied (single) argu‐
	     ment, and appending ".whois-servers.net".	This effectively
	     allows a suitable whois server to be selected automatically for a
	     large number of TLDs.

	     In the event that an IP address is specified, the whois server
	     will default to the American Registry for Internet Numbers
	     (ARIN).  If a query to ARIN references APNIC, LACNIC, or RIPE,
	     that server will be queried also, provided that the -Q option is
	     not specified.

	     If the query is not a domain name or IP address, whois will fall
	     back to whois.crsnic.net.

     -i	     Use the Network Solutions Registry for Internet Numbers
	     (whois.networksolutions.com) database.  It contains network num‐
	     bers and domain contact information for most of .COM, .NET, .ORG
	     and .EDU domains.

	     NOTE!  The registration of these domains is now done by a number
	     of independent and competing registrars and this database holds
	     no information on the domains registered by organizations other
	     than Network Solutions, Inc.  Also, note that the InterNIC data‐
	     base (whois.internic.net) is no longer handled by Network Solu‐
	     tions, Inc.  For details, see http://www.internic.net/.

	     (Hint: Contact information, identified by the term handle, can be
	     looked up by prefixing "handle " to the NIC handle in the query.)

     -l	     Use the Latin American and Caribbean IP address Regional Registry
	     (LACNIC) database.	 It contains network numbers used in much of
	     Latin America and the Caribbean.

     -m	     Use the Route Arbiter Database (RADB) database.  It contains
	     route policy specifications for a large number of operators' net‐
	     works.

     -p port
	     Connect to the whois server on port.  If this option is not spec‐
	     ified, whois defaults to port 43.

     -Q	     Do a quick lookup.	 This means that whois will not attempt to
	     lookup the name in the authoritative whois server (if one is
	     listed).  This option has no effect when combined with any other
	     options.

     -r	     Use the R´eseaux IP Europ´eens (RIPE) database.  It contains net‐
	     work numbers and domain contact information for Europe.

     -R	     Use the Russia Network Information Center (RIPN) database.	 It
	     contains network numbers and domain contact information for sub‐
	     domains of .RU.  This option is deprecated; use the -c option
	     with an argument of "RU" instead.

     -6	     Use the IPv6 Resource Center (6bone) database.  It contains net‐
	     work names and addresses for the IPv6 network.

     The operands specified to whois are treated independently and may be used
     as queries on different whois servers.

EXAMPLES
     Most types of data, such as domain names and IP addresses, can be used as
     arguments to whois without any options, and whois will choose the correct
     whois server to query.  Some exceptions, where whois will not be able to
     handle data correctly, are detailed below.

     To obtain contact information about an administrator located in the Rus‐
     sian TLD domain "RU", use the -c option as shown in the following exam‐
     ple, where CONTACT-ID is substituted with the actual contact identifier.

	   whois -c RU CONTACT-ID

     (Note: This example is specific to the TLD "RU", but other TLDs can be
     queried by using a similar syntax.)

     The following example demonstrates how to obtain information about an
     IPv6 address or hostname using the -6 option, which directs the query to
     6bone.

	   whois -6 IPv6-IP-Address

     The following example demonstrates how to query a whois server using a
     non-standard port, where “query-data” is the query to be sent to
     “whois.example.com” on port “rwhois” (written numerically as 4321).

	   whois -h whois.example.com -p rwhois query-data

SEE ALSO
     Ken Harrenstien and Vic White, NICNAME/WHOIS, 1 March 1982, RFC 812.

HISTORY
     The whois command appeared in 4.3BSD.

BSD			       December 15, 2001			   BSD
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