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

% IP Client: 203.119.106.26
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% 2026-01-21T08:08:46-03:00 - 203.119.106.26

inetnum:     143.106.0.0/16
aut-num:     AS53187
abuse-c:     CSUNI
owner:       UNIVERSIDADE ESTADUAL DE CAMPINAS
ownerid:     46.068.425/0001-33
responsible: Coord Tecnologia da Inform e Comunicacao
country:     BR
owner-c:     CTICO
tech-c:      CTICO
inetrev:     143.106.0.0/16
nserver:     ns1.unicamp.br
nsstat:      20260119 AA
nslastaa:    20260119
nserver:     ns3.unicamp.br
nsstat:      20260119 AA
nslastaa:    20260119
nserver:     ns1.ansp.br
nsstat:      20260119 AA
nslastaa:    20260119
created:     19900326
changed:     20130410

nic-hdl-br:  CTICO
person:      Coord Tecnologia da Inform e Comunicacao
e-mail:      noc@unicamp.br
country:     BR
created:     20061027
changed:     20200507

nic-hdl-br:  CSUNI
person:      CSIRT Unicamp
e-mail:      security@unicamp.br
country:     BR
created:     20130410
changed:     20130410

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