AS28576

Name: AS28576 — ITIBR - Instituto de Tecnologia Informacao Brasil
Creator: ipdex

ITIBR - Instituto de Tecnologia Informacao Brasil ISP registered in Brazil

12IPv4 prefixes

1IPv6 prefixes

92%RPKI-valid

#24,550AS Rank

327/327RIS visibility

#1,004Rank in Brazil

2004-04-06Allocated

ITIBR - Instituto de Tecnologia Informacao Brasil (AS28576) — ISP, registered in Brazil. announces 12 IPv4 prefixes + 1 IPv6 prefixes. Rank in Brazil: #1004. Allocated: 2004-04-06.

IPv4 12IPv6 1

Announced prefixes · 13

v4 187.73.128.0/21 valid
v4 187.73.130.0/24 valid
v4 187.73.132.0/24 valid
v4 189.38.16.0/22 valid
v4 189.38.20.0/23 valid
v4 189.38.24.0/21 unknown
v4 200.220.144.0/22 valid
v4 200.220.146.0/24 valid
v4 200.220.148.0/23 valid
v4 200.220.152.0/21 valid
v4 200.220.156.0/24 valid
v4 200.220.157.0/24 valid
v6 2804:3c::/32 valid

RPKI: rpki.cloudflare.com · 2026-06-17

Routing: 12 IPv4 · 1 IPv6 announced · RIS visibility 327/327 RIS peers · RIPEstat · 2026-06-17

Prefix history

Announced prefixes Source: ipdex daily snapshot · sparse rows, value holds until the next change (steps)

Data table

Day	Announced prefixes
2026-06-12	13
2026-06-13	13

Internet Exchanges · 1

IX.br (PTT.br) São Paulo São Paulo/SP 10 Gbps

AS topology · Customer cone 1

Providers · 3

AS22356 Durand do Brasil Ltda
AS262731 CTINET SOLUCOES EM CONECTIVIDADE E INFORMATICA LTD
AS8055 TAVOLA CONECTIVIDADE LTDA.

Peers · 23

AS6939 Hurricane Electric LLC
AS271253 LINK BRASIL TELECOMUNICACOES LTDA
AS35280 F5 Networks SARL
AS60503 FNX Tecnologia LTDA
AS199524 G-Core Labs S.A.
AS52873 Softdados Telecomunicações

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