% 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://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 'AS203113 - AS205662'

as-block:       AS203113 - AS205662
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:        2024-09-19T13:43:36Z
last-modified:  2024-09-19T13:43:36Z
source:         RIPE

% Information related to 'AS204444'

% Abuse contact for 'AS204444' is 'abuse@lantech.com.pl'

aut-num:        AS204444
as-name:        LANTECH-AS
org:            ORG-LN90-RIPE
remarks:        ======================[UPSTREAM]===========================
remarks:        = Academic Centre of Computer Science
import:         from AS13119 accept ANY
export:         to AS13119 announce AS204444
mp-import:      afi ipv4.unicast from AS13119 accept ANY
mp-export:      afi ipv4.unicast to AS13119 announce AS-LTNT
mp-import:      afi ipv6.unicast from AS13119 accept ANY
mp-export:      afi ipv6.unicast to AS13119 announce AS-LTNT
remarks:        = Sat-Mont-Service Jacek Mruk Krzysztof Mruk Sp. J.
import:         from AS44061 accept ANY
export:         to AS44061 announce AS204444
mp-import:      afi ipv4.unicast from AS44061 accept ANY
mp-export:      afi ipv4.unicast to AS44061 announce AS-LTNT
mp-import:      afi ipv6.unicast from AS44061 accept ANY
mp-export:      afi ipv6.unicast to AS44061 announce AS-LTNT
remarks:        ======================[IX]=================================
remarks:        = EPIX Warszawa - Polmix
import:         from AS201054 accept ANY
export:         to AS201054 announce AS204444
remarks:        = EPIX Warszawa - OpenPeering
import:         from AS48850 accept ANY
export:         to AS48850 announce AS204444
remarks:        = EPIX Katowice - Polmix
import:         from AS201054 accept ANY
export:         to AS201054 announce AS204444
remarks:        = EPIX Katowice - OpenPeering
import:         from AS62047 accept ANY
export:         to AS62047 announce AS204444
remarks:        = SZN-IX
import:         from AS209392 accept ANY
export:         to AS209392 announce AS204444
remarks:        ======================[DOWNSTREAM]=========================
remarks:        = zmora:BGP Research Network
import:         from AS204893 accept AS204893
export:         to AS204893 announce ANY
mp-import:      afi ipv4.unicast from AS204893 accept AS-ZMORA
mp-export:      afi ipv4.unicast to AS204893 announce ANY
mp-import:      afi ipv6.unicast from AS204893 accept AS-ZMORA
mp-export:      afi ipv6.unicast to AS204893 announce ANY
remarks:        ===========================================================
admin-c:        AMSK1-RIPE
tech-c:         AMSK1-RIPE
tech-c:         PP13405-RIPE
status:         ASSIGNED
mnt-by:         RIPE-NCC-END-MNT
mnt-by:         ACI-MNT-POLAND
mnt-by:         LTNT-MNT
mnt-by:         ZMOR4-MNT
created:        2018-03-09T10:19:53Z
last-modified:  2022-09-17T09:42:59Z
source:         RIPE
sponsoring-org: ORG-AMAN1-RIPE

organisation:   ORG-LN90-RIPE
org-name:       LanTech Piotr Pilek
country:        PL
org-type:       OTHER
address:        ul. Marcina 2
address:        71-544 Szczecin
abuse-c:        ACRO14428-RIPE
mnt-ref:        LTNT-MNT
mnt-by:         LTNT-MNT
created:        2018-03-02T09:01:53Z
last-modified:  2022-12-01T17:03:01Z
source:         RIPE # Filtered

role:           Academic Centre of Computer Science
org:            ORG-AMAN1-RIPE
address:        Zachodniopomorski Uniwersytet Technologiczny w Szczecinie
address:        Akademickie Centrum Informatyki
address:        al. Piastow 41
address:        71-065 Szczecin
address:        POLAND
remarks:        Akademicka Miejska Siec Komputerowa - AMSK Szczecin
phone:          +48.914495858
abuse-mailbox:  abuse@man.szczecin.pl
admin-c:        KB470-RIPE
admin-c:        DW391-RIPE
tech-c:         SN2158-RIPE
tech-c:         LS10590-RIPE
tech-c:         SK2474-RIPE
nic-hdl:        AMSK1-RIPE
mnt-by:         ACI-MNT-POLAND
created:        2003-03-24T11:10:11Z
last-modified:  2018-06-21T16:49:30Z
source:         RIPE # Filtered

person:         Piotr Pilek
address:        LanTech Networks
address:        ul. Niemcewicza 26
address:        71-520 Szczecin
address:        POLAND
address:        biuro@lantech.com.pl
phone:          +48 501 71 42 42
nic-hdl:        PP13405-RIPE
mnt-by:         MNT-LANTECH
created:        2014-05-15T10:27:46Z
last-modified:  2014-05-15T10:31:31Z
source:         RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.114 (DEXTER)

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