This AS is not currently used to announce prefixes in the global routing table, nor is it used as a visible transit AS.
whois: 402603
IANA has recorded AS1251 as originally allocated by
/usr/bin/whois -h jwhois.apnic.netr "AS1251\n % IP Client: 2401:2000:6660::13
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% Privacy Policy at https://registro.br/upp . Distribution,
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% 2026-06-09T07:40:12-03:00 - 2401:2000:6660::13
aut-num: AS1251
owner: FUNDA��O DE AMPARO � PESQUISA DO ESTADO S�O PAULO
ownerid: 43.828.151/0001-45
responsible: Marcos Martins Duma
country: BR
owner-c: MAMDU219
routing-c: JMA135
abuse-c: JMA135
created: 19991112
changed: 20130306
inetnum: 200.136.0.0/16
inetnum: 200.18.240.0/20
inetnum: 200.18.96.0/20
inetnum: 200.18.48.0/20
inetnum: 200.19.80.0/20
inetnum: 200.19.224.0/20
inetnum: 200.144.128.0/20
inetnum: 200.144.32.0/19
inetnum: 2001:12d8::/32
inetnum: 143.108.0.0/16
inetnum: 200.144.78.0/23
inetnum: 200.144.72.0/23
inetnum: 200.144.64.0/21
inetnum: 200.144.80.0/20
inetnum: 200.144.96.0/19
nic-hdl-br: MAMDU219
person: Marcos Martins Duma
e-mail: mduma@fapesp.br
country: BR
created: 20240628
changed: 20250423
nic-hdl-br: JMA135
person: Jorge Marcos de Almeida
e-mail: jorge@usp.br
country: BR
created: 20020226
changed: 20240611
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