% 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.
%  2026-01-18 04:30:41 (-03 -03:00)

inetnum:     201.151.0.0/16
status:      allocated
aut-num:     N/A
owner:       Alestra, S. de R.L. de C.V.
ownerid:     MX-ALES-LACNIC
responsible: IP NOC
address:     AV MUNICH, 175, CUAUHTEMOC
address:     66450 - SAN NICOLAS DE LOS GARZA - NL
country:     MX
phone:       +52  8008882662
owner-c:     INA2
tech-c:      INA2
abuse-c:     INA2
inetrev:     201.151.0.0/16
nserver:     DNS.ALESTRA.NET.MX
nsstat:      20260116 AA
nslastaa:    20260116
nserver:     MAIL1.ALESTRA.NET.MX
nsstat:      20260116 AA
nslastaa:    20260116
nserver:     MAIL2.ALESTRA.NET.MX
nsstat:      20260116 AA
nslastaa:    20260116
created:     20050530
changed:     20050530

nic-hdl:     INA2
person:      Inet Administrator
e-mail:      inetadmin@alestra.net.mx
address:     Ave. Eugenio Clariond Garza, 175, Cuauhtemoc
address:     66450 - San Nicolas de los Garza - NL
country:     MX
phone:       +52  8008882662
created:     20030206
changed:     20250421

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