% 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 '89.144.192.0 - 89.144.223.255'

% Abuse contact for '89.144.192.0 - 89.144.223.255' is 'abuse@a1.at'

inetnum:        89.144.192.0 - 89.144.223.255
netname:        MOBILKOM-MOBILEPOOLS3
descr:          MobilePools
country:        AT
admin-c:        HMH25-RIPE
tech-c:         HMH25-RIPE
status:         ASSIGNED PA
mnt-by:         AS8447-MNT
mnt-lower:      AS8447-MNT
created:        2006-02-06T13:47:17Z
last-modified:  2022-08-08T14:20:39Z
source:         RIPE

role:           Host Master Highway
address:        A1 Telekom Austria AG
address:        Arsenal Objekt 24
address:        1030 Vienna
address:        Austria
phone:          +43 50 664 8 664 100
fax-no:         +43 50 664 8 664 101
abuse-mailbox:  abuse@a1.at
remarks:        for database maintenance please contact
remarks:        < hostmaster @ aon.at >
admin-c:        MA3804-RIPE
admin-c:        AJ2061-RIPE
tech-c:         MA3804-RIPE
tech-c:         AJ2061-RIPE
nic-hdl:        HMH25-RIPE
mnt-by:         AS8447-MNT
created:        2002-05-31T10:41:49Z
last-modified:  2021-10-19T11:50:46Z
source:         RIPE # Filtered

% Information related to '89.144.192.0/18AS8447'

route:          89.144.192.0/18
descr:          A1 Telekom Austria AG
origin:         AS8447
mnt-by:         AS8447-MNT
mnt-lower:      AS8447-MNT
created:        2017-08-24T06:47:54Z
last-modified:  2018-06-27T06:20:08Z
source:         RIPE # Filtered

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

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