% 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 22:51:21 (-03 -03:00)

inetnum:     186.37.0.0/16
status:      allocated
aut-num:     N/A
owner:       Entel PCS Telecomunicaciones S.A.
ownerid:     CL-EPTS3-LACNIC
responsible: Carlos Catalan Rodriguez
address:     Amunategui, 20, -
address:     8340516 - Santiago - RM
country:     CL
phone:       +56  23688591 [0000]
owner-c:     MTH
tech-c:      MTH
abuse-c:     MTH
inetrev:     186.37.0.0/16
nserver:     POLUX.ENTELCHILE.NET
nsstat:      20260103 AA
nslastaa:    20260103
nserver:     CASTOR.ENTELCHILE.NET
nsstat:      20260103 AA
nslastaa:    20260103
created:     20110526
changed:     20110526

nic-hdl:     MTH
person:      Carlos Catalán Rodriguez
e-mail:      ccatalan@entel.cl
address:     Amunategui 20, Piso7, 20, -
address:     8340516 - Santiago - RM
country:     CL
phone:       +56  223600000 [0]
created:     20070208
changed:     20231012

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