% 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 'AS47385 - AS50218'

as-block:       AS47385 - AS50218
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:        2024-05-01T14:06:55Z
last-modified:  2024-05-01T14:06:55Z
source:         RIPE

% Information related to 'AS48417'

% Abuse contact for 'AS48417' is 'lir@its.cz'

aut-num:        AS48417
as-name:        ITS-CZ
org:            ORG-Ias1-RIPE
remarks:        Upstream provider - TELIA
import:         from AS1299 accept ANY
export:         to AS1299 announce AS-ITS-NETWORKS
remarks:        Upstream provider - VODAFONE-CZ
import:         from AS16019 accept ANY
export:         to AS16019 announce AS-ITS-NETWORKS
remarks:        Upstream provider - CASABLANCA INT
import:         from AS15685 accept ANY
export:         to AS15685 announce AS48417
remarks:        Upstream provider - CD-Telematika
import:         from AS25512 accept ANY
export:         to AS25512 announce AS48417
remarks:        Upstream provider - T-Mobile
import:         from AS5588 accept ANY
export:         to AS5588 announce AS48417
remarks:        # Peering
import:         from AS6881 accept ANY # NIXCZ
export:         to AS6881 announce AS-ITS-NETWORKS
import:         from AS47200 accept ANY # NIX routeservers
export:         to AS47200 announce AS-ITS-NETWORKS
import:         from AS6939 accept ANY # Hurricane Electric
export:         to AS6939 announce AS-ITS-NETWORKS
import:         from AS61195 accept ANY # PEERING.CZ routeservers
export:         to AS61195 announce AS-ITS-NETWORKS
import:         from AS13335 accept ANY # NIX.CZ and PEERING.CZ
export:         to AS13335 announce AS-ITS-NETWORKS
admin-c:        LS5878-RIPE
admin-c:        TB4020-RIPE
tech-c:         LS5878-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
tech-c:         TB4020-RIPE
mnt-by:         MNT-ITS-CZ
created:        2008-11-25T07:58:41Z
last-modified:  2022-05-30T16:59:36Z
source:         RIPE # Filtered

organisation:   ORG-Ias1-RIPE
org-name:       ITS akciova spolecnost
country:        CZ
org-type:       LIR
phone:          +420255772405
fax-no:         +420255772394
abuse-c:        AR14430-RIPE
admin-c:        LS5878-RIPE
mnt-ref:        RIPE-NCC-HM-MNT
mnt-ref:        MNT-ITS-CZ
mnt-by:         RIPE-NCC-HM-MNT
mnt-by:         MNT-ITS-CZ
created:        2008-11-12T12:45:22Z
last-modified:  2020-12-16T13:11:38Z
source:         RIPE # Filtered
address:        Vinohradska 184
address:        130 52
address:        Praha 3
address:        CZECH REPUBLIC

person:         Lumir Srch
address:        ITS akciova spolecnost
address:        Vinohradska 184
address:        130 52
address:        Prague
address:        The Czech Republic
phone:          +420 255 772 405
fax-no:         +420 255 772 394
nic-hdl:        LS5878-RIPE
mnt-by:         MNT-ITS-CZ
created:        1970-01-01T00:00:00Z
last-modified:  2008-12-18T07:46:20Z
source:         RIPE # Filtered

person:         Tomas Blinka
address:        ITS akciova spolecnost
address:        Vinohradska 184
address:        130 52
address:        Prague
address:        The Czech Republic
phone:          +420 255 772 412
fax-no:         +420 255 772 395
nic-hdl:        TB4020-RIPE
mnt-by:         MNT-ITS-CZ
created:        2008-12-15T20:01:29Z
last-modified:  2008-12-18T07:45:20Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.112 (BUSA)

Search for
IP address lookups			Miscellaneous queries
-l	1st level less specific		-i	Inverse attributes	None admin-c admin-c,tech-c,zone-c author cross-mnt cross-nfy local-as mbrs-by-ref member-of mnt-by mnt-lower mnt-nfy mnt-routes notify nserver origin person referral-by rev-srv sub-dom tech-c upd-to zone-c
-L	All less specific		-T	Object types	All as-block as-set aut-num domain filter-set inet-rtr inet6num inetnum irt key-cert mntner peering-set person role route route-set rtr-set
-m	1st level more specific
-M	All more specific		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
-d	Associated reverse domain