APNIC - Query the APNIC Whois Database

Try the new whois search

To assist you with debugging problems, this whois query was received from IP Address

% APNIC found the following authoritative answer from: whois.ripe.net

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
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% See https://docs.db.ripe.net/terms-conditions.html

% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.

% Information related to '77.51.0.0 - 77.51.52.255'

% Abuse contact for '77.51.0.0 - 77.51.52.255' is 'abuse@rt.ru'

inetnum:        77.51.0.0 - 77.51.52.255
netname:        MACROREGIONAL_CENTER
descr:          ex-netname: CTC-DSLAM-4
descr:          OJSC Rostelecom, Moscow Region Branch
descr:          DSL access network in  Moscow region
country:        RU
admin-c:        CTC1-RIPE
tech-c:         CTC1-RIPE
status:         ASSIGNED PA
mnt-by:         MNT-CTC
created:        2011-11-24T14:48:53Z
last-modified:  2012-08-17T12:51:03Z
source:         RIPE

role:           OJSC Rostelecom
address:        29/2 Narodnogo Opolcheniya str.,
address:        123154, Moscow
abuse-mailbox:  ripe@rt.ru
admin-c:        AY25515
tech-c:         AY25515
nic-hdl:        CTC1-RIPE
mnt-by:         MNT-CTC
created:        2009-06-29T07:45:40Z
last-modified:  2022-02-18T14:02:19Z
source:         RIPE # Filtered

% Information related to '77.51.16.0/21AS12389'

route:          77.51.16.0/21
descr:          Rostelecom networks
origin:         AS12389
mnt-by:         ROSTELECOM-MNT
created:        2018-10-31T12:34:24Z
last-modified:  2018-10-31T12:34:24Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.114 (BUSA)
  • Bold: Object type.
  • Underlined: Primary key(s).
  • Hyperlinks: Searchable Attributes.
3 records found for '77.51.20.251'
Search for  
IP address lookups Miscellaneous queries
-l

1st level less specific

 Returns smallest IP address range that includes the queried IP address or range

-i

Inverse attributes

 Returns objects with an attribute that matches the query text and attribute type
-L

All less specific

 Return all larger IP address ranges that include the queried IP address or range

-T

Object types

 Results that match the query and are of a specified object type
-m

1st level more specific

 Returns first level more specific address ranges within the boundaries of the queried IP address range
-M

All more specific

 Returns all more specific address ranges within the boundaries of the queried IP address range

Query hints

  • Include "AS" in front of an AS number.
    Example: AS4808

  • Include "-t" (template only) or "-v" (template and description) in front of an object name to view the template
    Example: -t inetnum

-x

Exact match only

 Returns address range that exactly matches the queried IP address range
-d

Associated reverse domain

 Returns IP address range and associated reverse domain

For more information see: