% 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 '83.146.213.64 - 83.146.213.67'

% Abuse contact for '83.146.213.64 - 83.146.213.67' is 'ripe@vsp.fi'

inetnum:        83.146.213.64 - 83.146.213.67
netname:        VANTAANMAKI-NET
descr:          As Oy Vantaanmaki
descr:          Vantaanmaki 1-5
descr:          01730 Vantaa
country:        FI
admin-c:        VSPR100-RIPE
tech-c:         VSPR100-RIPE
status:         ASSIGNED PA
mnt-routes:     FI2G-MNT
mnt-by:         VSP-MNT
created:        2004-09-17T10:43:16Z
last-modified:  2004-09-17T10:43:16Z
source:         RIPE

role:           VSP REGISTRY
address:        Pohjoistullikatu 11
address:        23500 Uusikaupunki
address:        FINLAND
remarks:        trouble: abuse@vsp.fi
admin-c:        VPOD1-RIPE
tech-c:         VPOD1-RIPE
nic-hdl:        VSPR100-RIPE
remarks:        Send abuse notifications to abuse@vsp.fi
mnt-by:         VSP-MNT
created:        2004-04-15T07:32:18Z
last-modified:  2022-03-08T10:47:08Z
source:         RIPE # Filtered
abuse-mailbox:  abuse@vsp.fi

% Information related to '83.146.192.0/18AS39194'

route:          83.146.192.0/18
descr:          Vakka-Suomen Puhelin Oy
origin:         AS39194
mnt-by:         VSP-MNT
created:        2008-10-14T12:27:36Z
last-modified:  2008-10-14T12:27:36Z
source:         RIPE

% This query was served by the RIPE Database Query Service version 1.107 (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