% 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 '81.93.10.188 - 81.93.10.191'

% Abuse contact for '81.93.10.188 - 81.93.10.191' is 'abuse@sewan.fr'

inetnum:        81.93.10.188 - 81.93.10.191
netname:        CENTRE-INFFO
descr:          CENTRE-INFFO servers
country:        FR
admin-c:        SS3666-RIPE
tech-c:         SM492-RIPE
status:         ASSIGNED PA
mnt-by:         ORNIS-MNT
created:        2008-01-08T15:08:49Z
last-modified:  2023-07-27T10:07:25Z
source:         RIPE

person:         Sylvain Mouly
address:        ORNIS
address:        Energy Park 5,
address:        130 Bd de Verdun
address:        92400 Courbevoie, France
phone:          +33 1 56 37 73 73
fax-no:         +33 1 56 37 73 00
nic-hdl:        SM492-RIPE
created:        1970-01-01T00:00:00Z
last-modified:  2004-02-19T13:33:26Z
source:         RIPE # Filtered
mnt-by:         ORNIS-MNT

person:         Simon Sebastien
address:        CENTRE-INFFO
address:        4 av du stade de France
address:        93218 la plaine st denis FRANCE
phone:          +33 1 55 93 91 21
fax-no:         +33 1 55 93 17 25
nic-hdl:        SS3666-RIPE
created:        2008-01-08T14:43:47Z
last-modified:  2008-01-08T14:43:47Z
source:         RIPE # Filtered
mnt-by:         ORNIS-MNT

% Information related to '81.93.0.0/19AS8399'

route:          81.93.0.0/19
descr:          SEWAN COMMUNICATIONS
origin:         AS8399
created:        2005-12-06T09:01:15Z
last-modified:  2015-10-09T13:37:12Z
source:         RIPE
mnt-by:         ORNIS-MNT

% This query was served by the RIPE Database Query Service version 1.111 (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