% APNIC found the following authoritative answer from: whois.lacnic.net

% IP Client: 203.119.106.26
 
% Joint Whois - whois.lacnic.net
%  This server accepts single ASN, IPv4 or IPv6 queries

% LACNIC resource: whois.lacnic.net

% Copyright LACNIC lacnic.net
%  The data below is provided for information purposes
%  and to assist persons in obtaining information about or
%  related to AS and IP numbers registrations
%  By submitting a whois query, you agree to use this data
%  only for lawful purposes.
%  2026-01-03 22:50:02 (-03 -03:00)

inetnum:     200.23.6.0/24
status:      assigned
aut-num:     N/A
owner:       Centro de Investigaciones en Optica, A.C.
ownerid:     MX-CIEO-LACNIC
responsible: JOSE IGNACIO DIEGO MANRIQUE
address:     Loma del Bosque, 115, Lomas del Campestre
address:     37150 - Leon - GT
country:     MX
phone:       +52  4774414200 [294]
owner-c:     CIA2
tech-c:      CIA2
abuse-c:     CIA2
inetrev:     200.23.6.0/24
nserver:     PNS41.CLOUDNS.NET
nsstat:      20251231 AA
nslastaa:    20251231
nserver:     PNS42.CLOUDNS.NET
nsstat:      20251231 AA
nslastaa:    20251231
created:     19950301
changed:     20140902

nic-hdl:     CIA2
person:      Centro de Investigaciones en Óptica, AC
e-mail:      tesiscio@cio.mx
address:     Loma del Bosque, 115, Lomas del Campestre
address:     37150 - León - GT
country:     MX
phone:       +52 477 4414200 [294]
created:     20110308
changed:     20210702

% whois.lacnic.net accepts only direct match queries.
% Types of queries are: POCs, ownerid, CIDR blocks, IP
% and AS numbers.