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

% IP Client: 203.119.110.26
 % Copyright (c) Nic.br - Use of this data is governed by the Use and
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% 2026-01-21T07:35:01-03:00 - 203.119.110.26

inetnum:     200.225.216.0/22
aut-num:     AS16735
abuse-c:     CST87
owner:       CIA DE TELECOMUNICACOES DO BRASIL CENTRAL
ownerid:     25.759.572/0001-80
responsible: Diretoria de Planejamento e Tecnologia
country:     BR
owner-c:     ALTSA49
tech-c:      GAD19
inetrev:     200.225.216.0/22
nserver:     nspar.ctbc.com.br
nsstat:      20260119 AA
nslastaa:    20260119
nserver:     nssar.ctbc.com.br
nsstat:      20260119 AA
nslastaa:    20260119
created:     20041220
changed:     20130307
inetnum-up:  200.225.192.0/18

nic-hdl-br:  ALTSA49
person:      ALGAR TELECOM S/A
e-mail:      registrobr@algar.com.br
country:     BR
created:     20140820
changed:     20250609

nic-hdl-br:  CST87
person:      Computer Security Incident Response Team
e-mail:      abuse@algartelecom.com.br
country:     BR
created:     20051208
changed:     20141114

nic-hdl-br:  GAD19
person:      Grupo de Tratamento de Incidentes
e-mail:      abuse@algartelecom.com.br
country:     BR
created:     20010507
changed:     20210105

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% respectivelly to cert@cert.br and mail-abuse@cert.br
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