APNIC - Query the APNIC Whois Database

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.
%
% The RIPE Database is subject to Terms and Conditions.
% See https://apps.db.ripe.net/docs/HTML-Terms-And-Conditions
% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.
% Information related to '143.121.0.0 - 143.121.255.255'
% No abuse contact registered for 143.121.0.0 - 143.121.255.255
inetnum:        143.121.0.0 - 143.121.255.255
netname:        UMCU
descr:          Universitair Medisch Centrum Utrecht
country:        NL
admin-c:        UNS5-RIPE
tech-c:         UNS5-RIPE
status:         LEGACY
mnt-by:         SN-LIR-MNT
mnt-irt:        irt-SURFcert
created:        1970-01-01T00:00:00Z
last-modified:  2019-05-28T08:47:15Z
source:         RIPE
role:           UMCU Netwerk & Security
address:        Universitair Medisch Centrum Utrecht
phone:          +31(0)88 75 50700
nic-hdl:        UNS5-RIPE
mnt-by:         SN-LIR-MNT
created:        2019-05-28T08:39:41Z
last-modified:  2019-05-28T08:39:41Z
source:         RIPE # Filtered
% Information related to '143.121.0.0/16AS1103'
route:          143.121.0.0/16
descr:          netname: AZUTRECHT
descr:          Academic Hospital Utrecht
descr:          Utrecht
origin:         AS1103
mnt-by:         AS1103-MNT
created:        1970-01-01T00:00:00Z
last-modified:  2001-09-22T09:31:59Z
source:         RIPE
% This query was served by the RIPE Database Query Service version 1.111 (ABERDEEN)
  • Bold: Object type.
  • Underlined: Primary key(s).
  • Hyperlinks: Searchable Attributes.
3 records found for '143.121.239.82'
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: