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

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% 2026-01-20T04:39:26-03:00 - 203.119.110.26

inetnum:     146.164.0.0/16
aut-num:     AS2715
abuse-c:     MAM214
owner:       UNIVERSIDADE FEDERAL DO RIO DE JANEIRO
ownerid:     33.663.683/0001-16
responsible: Ana Maria Ribeiro
country:     BR
owner-c:     AMARI58
tech-c:      BRMGU34
inetrev:     146.164.0.0/16
nserver:     ns.ufrj.br
nsstat:      20260120 AA
nslastaa:    20260120
nserver:     nsx.ufrj.br
nsstat:      20260120 AA
nslastaa:    20260120
created:     19910215
changed:     20220706

nic-hdl-br:  AMARI58
person:      Ana Maria de Almeida Ribeiro
e-mail:      Ribeiro@acd.ufrj.br
country:     BR
created:     20241017
changed:     20250423

nic-hdl-br:  BRMGU34
person:      Bruno Milet Guimar�es
e-mail:      brunomilet@tic.ufrj.br
country:     BR
created:     20200127
changed:     20200420

nic-hdl-br:  MAM214
person:      Marita Maestrelli
e-mail:      marita@cbpf.br
country:     BR
created:     19980904
changed:     20190612

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