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 http://www.ripe.net/db/support/db-terms-conditions.pdf
% Note: this output has been filtered.
%       To receive output for a database update, use the "-B" flag.
% Information related to 'AS42383 - AS45055'
as-block:       AS42383 - AS45055
descr:          RIPE NCC ASN block
remarks:        These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by:         RIPE-NCC-HM-MNT
created:        2018-11-22T15:27:34Z
last-modified:  2018-11-22T15:27:34Z
source:         RIPE
% Information related to 'AS42477'
% Abuse contact for 'AS42477' is 'abuse@cerberos.cz'
aut-num:        AS42477
as-name:        CERBEROS
remarks:        =====Upstream connectivity =====
remarks:        -- Supernetwork --
import:         from AS39392 accept ANY
export:         to AS39392 announce AS-SET-CBS
remarks:        -- GTS ce --
import:         from AS5588 accept ANY
export:         to AS5588 announce AS-SET-CBS
remarks:        -- Casablanca --
import:         from AS15685 accept ANY
export:         to AS15685 announce AS-SET-CBS
remarks:        ===== MB Transit Customers =====
remarks:        -- Comfeel --
import:         from AS197444 accept AS197444
export:         to AS197444 announce ANY
remarks:        ===== LB Peers =====
import:         from AS47913 accept AS47913
export:         to AS47913 announce ANY
remarks:        ===== NIX peerings=====
remarks:        -- NIX RS --
import:         from AS47200 accept ANY
export:         to AS47200 announce AS-SET-CBS
remarks:        -- GiTy,a.s. --
import:         from AS29086 accept AS-GITY
export:         to AS29086 announce AS-SET-CBS
remarks:        -- Trestel SK, a.s. --
import:         from AS38949 accept AS38949
export:         to AS38949 announce AS-SET-CBS
remarks:        -- NEW TELEKOM, s.r.o. --
import:         from AS43413 accept AS43413
export:         to AS43413 announce AS-SET-CBS
remarks:        -- Pantel CZ --
import:         from AS197284 accept AS-INVITELSK
export:         to AS197284 announce AS-SET-CBS
remarks:        -- NIX.CZ, z.s.p.o. --
import:         from AS6881 accept AS-NIX
export:         to AS6881 announce AS-SET-CBS
remarks:        -- Dial-telecom --
import:         from AS29208 accept ANY
export:         to AS29208 announce AS-SET-CBS
remarks:        -- HURICANE --
import:         from AS6939 accept ANY
export:         to AS6939 announce AS-SET-CBS
remarks:        -- T-mobile --
import:         from AS13036 accept ANY
export:         to AS13036 announce AS-SET-CBS
remarks:        -- CESNET --
import:         from AS2852 accept ANY
export:         to AS2852 announce AS-SET-CBS
remarks:        -- WIA --
import:         from AS21430 accept ANY
export:         to AS21430 announce AS-SET-CBS
remarks:        -- CENTRONET --
import:         from AS29321 accept ANY
export:         to AS29321 announce AS-SET-CBS
remarks:        -- KIT digital Czech --
import:         from AS41711 accept ANY
export:         to AS41711 announce AS-SET-CBS
remarks:        ===== Peering.cz peerings=====
remarks:        -- CORE-BACKBONE --
import:         from AS33891 accept ANY
export:         to AS33891 announce AS-SET-CBS
remarks:        -- SITKOM --
import:         from AS49931 accept ANY
export:         to AS49931 announce AS-SET-CBS
remarks:        -- Master Internet --
import:         from AS24971 accept ANY
export:         to AS24971 announce AS-SET-CBS
org:            ORG-Cs63-RIPE
admin-c:        VO1009-RIPE
tech-c:         VO1009-RIPE
tech-c:         MD22356-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         MNT-CERBEROS
created:        2007-02-28T08:29:12Z
last-modified:  2020-04-08T12:15:21Z
source:         RIPE # Filtered
organisation:   ORG-CS63-RIPE
org-name:       Cerberos s.r.o.
country:        CZ
org-type:       LIR
address:        Blahoslavova 184
address:        29301
address:        MLADA BOLESLAV
address:        CZECH REPUBLIC
phone:          +420326100000
admin-c:        VO1009-RIPE
admin-c:        JP2969-RIPE
admin-c:        MH15250-RIPE
abuse-c:        CSRA1-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-CERBEROS
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-CERBEROS
created:        2006-02-21T13:03:13Z
last-modified:  2020-12-16T13:28:08Z
source:         RIPE # Filtered
person:         Monika Dokoupilova
address:        Czech Republic
phone:          +420-222-742-741
nic-hdl:        MD22356-RIPE
mnt-by:         MNT-DOKOUMO
created:        2015-08-18T10:55:22Z
last-modified:  2020-03-03T14:25:42Z
source:         RIPE
person:         Vitalij Osypenko
address:        Jestrabi 974/1, Liberec, 46001, Czech republic
phone:          +420732888886
nic-hdl:        VO1009-RIPE
mnt-by:         ATAN-MNT
created:        2016-05-23T13:50:28Z
last-modified:  2017-11-24T15:14:47Z
source:         RIPE
% This query was served by the RIPE Database Query Service version 1.100 (WAGYU)
  • Bold: Object type.
  • Underlined: Primary key(s).
  • Hyperlinks: Searchable Attributes.
5 records found for 'AS42477'
Search for  
IP address lookups Miscellaneous queries

1st level less specific

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


Inverse attributes

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

All less specific

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


Object types

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

1st level more specific

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

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


Exact match only

Returns address range that exactly matches the queried IP address range

Associated reverse domain

Returns IP address range and associated reverse domain

For more information see: