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

% IP Client: 203.119.110.26
 
% 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.
%  2025-12-15 20:01:06 (-03 -03:00)

inetnum:     201.234.16.0/20
status:      reallocated
aut-num:     N/A
owner:       CIRION TECHNOLOGIES ARGENTINA S.A.
ownerid:     AR-LASA42-LACNIC
responsible: Jorge Lam
address:     Alférez Pareja, 256, -
address:     C1107BJD - Buenos Aires - BA
country:     AR
phone:       +54  1151700000 [0000]
owner-c:     NEA5
tech-c:      NEA5
abuse-c:     CIA29
inetrev:     201.234.30.0/24
nserver:     ANS1AR.CIRION.LIVE
nsstat:      20251215 AA
nslastaa:    20251215
nserver:     ANS2AR.CIRION.LIVE
nsstat:      20251215 AA
nslastaa:    20251215
created:     20240226
changed:     20241009
inetnum-up:  201.234.0.0/17

nic-hdl:     NEA5
person:      Claudia Duque
e-mail:      claudia.duque@ciriontechnologies.com
address:     Alferez Pareja, 256, -
address:     1107 - Capital Federal - BA
country:     AR
phone:       +54  1151706000 [0000]
created:     20030710
changed:     20250603

nic-hdl:     CIA29
person:      Cirion Abuse
e-mail:      abuse@ciriontechnologies.com
address:     Olguin, 395, 
address:      - Lima - 
country:     PE
phone:       +51  17055700
created:     20240401
changed:     20240401

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