% 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 '84.52.39.64 - 84.52.39.127'

% Abuse contact for '84.52.39.64 - 84.52.39.127' is 'abuse@infonet.ee'

inetnum:        84.52.39.64 - 84.52.39.127
netname:        EE-INFONET-20051214
descr:          Cable dynamic address pools
descr:          AS INFONET
country:        EE
admin-c:        AL81-RIPE
tech-c:         KB193-RIPE
status:         ASSIGNED PA
mnt-by:         INFONET-MNT
remarks:        INFRA-AW
created:        2005-12-14T12:53:34Z
last-modified:  2005-12-14T12:53:34Z
source:         RIPE # Filtered

person:         Andrei Leshkin
address:        INFONET AS
address:        8 Suurtuki str
address:        Tallinn EE0004
address:        Estonia
phone:          +372-640-0000
fax-no:         +372-640-0064
nic-hdl:        AL81-RIPE
created:        2002-09-20T15:32:12Z
last-modified:  2020-06-04T10:12:44Z
source:         RIPE # Filtered
mnt-by:         INFONET-MNT

person:         Konstantin Barinov
address:        AS INFONET
address:        8 Suurtuki str
address:        Tallinn EE0004
address:        Estonia
phone:          +372 640-0000
fax-no:         +372 640-0064
nic-hdl:        KB193-RIPE
created:        2002-09-20T15:32:12Z
last-modified:  2020-06-05T07:33:11Z
mnt-by:         INFONET-MNT
source:         RIPE # Filtered

% Information related to '84.52.32.0/19AS8728'

route:          84.52.32.0/19
origin:         AS8728
mnt-by:         INFONET-MNT
created:        2019-10-12T10:12:46Z
last-modified:  2019-10-12T10:12:46Z
source:         RIPE

% 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