AS28370 — GUIFAMI Informatica Ltda.

AS28370 announces 3 IPv4 prefixes covering 9,216 addresses and 1 IPv6 prefixes.

About this network

AS28370 is operated by 3AX Telecom, registered under the legal name GUIFAMI Informática Ltda.

What it's used for

• The address space carries residential broadband access, evidenced by reverse DNS entries such as ultravelocidade-128.3ax.com.br and ultravelocidade-126.3ax.com.br.
• The AS announces 9216 IPv4 addresses across 5 prefixes and 12 IPv6 prefixes, while maintaining 48 observed neighbours, a ratio consistent with a regional access provider rather than a transit hub.

Notable

• All RDAP registrants for the announced prefixes are listed as GUIFAMI Informática Ltda., matching the AS holder.
• The operator is identified in peering databases as 3AX Telecom, a regional ISP in Brazil.
• The inventory consists of two /20 blocks and three smaller blocks in the 45.172.0.0/16 range, alongside a large contiguous IPv6 allocation.

This description is AI-generated, best-effort context — not authoritative, and provided without any guarantee of accuracy.

Announced prefixes

• 45.172.144.0/22
• 187.45.144.0/20
• 189.84.144.0/20
• 2804:591c::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS22356 Durand do Brasil Ltda
• AS24482 SG.GS
• AS37721 Virtual Technologies & Solutions
• AS57463 NetIX Communications JSC
• AS268624 Gamers Club Ltda
• AS271253 LINK BRASIL TELECOMUNICACOES LTDA

Downstream networks

• AS264426 VM Provedora de Internet Ltda Me
• AS267608 Micheleto Internet Eireli
• AS53079 MD Brasil - Tecnologia da Informacao Ltda
• AS263535 REDE GLOBAL TECNOLOGIA LTDA ME
• AS268198 StacaoNET Telecomunicacoes
• AS263060 Atilio Marcos Marcari e Cia Ltda Me
• AS267556 Explorer Telecom Ltda - ME
• AS263963 Goldweb Barretos servicos de Telecomunicacoes Ltda
• AS273514 AMPLE SOLUCOES TECNOLOGICAS LTDA
• AS28657 MD Brasil - Tecnologia da Informacao Ltda
• AS269168 NEWSIGNAL INTERNET E TECNOLOGIA
• AS268521 PONTO.COM TELECOM
• AS269016 F T L Net Provedor de Internet Ltda- ME
• AS270962 NETICO TELECOMUNICACAO LTDA
• AS272253 FLASH PROVEDOR DE INTERNET LTDA

Adjacent networks

• AS3356 Level 3 Parent, LLC
• AS6939 Hurricane Electric LLC
• AS264426 VM Provedora de Internet Ltda Me
• AS263535 REDE GLOBAL TECNOLOGIA LTDA ME
• AS267608 Micheleto Internet Eireli
• AS53079 MD Brasil - Tecnologia da Informacao Ltda
• AS268624 Gamers Club Ltda
• AS263060 Atilio Marcos Marcari e Cia Ltda Me
• AS268198 StacaoNET Telecomunicacoes
• AS267556 Explorer Telecom Ltda - ME
• AS271253 LINK BRASIL TELECOMUNICACOES LTDA
• AS263963 Goldweb Barretos servicos de Telecomunicacoes Ltda
• AS273514 AMPLE SOLUCOES TECNOLOGICAS LTDA
• AS28657 MD Brasil - Tecnologia da Informacao Ltda
• AS24482 SG.GS
• AS268521 PONTO.COM TELECOM
• AS269168 NEWSIGNAL INTERNET E TECNOLOGIA
• AS57463 NetIX Communications JSC
• AS1031 PEER 1031 LLC
• AS22356 Durand do Brasil Ltda
• AS37721 Virtual Technologies & Solutions
• AS269016 F T L Net Provedor de Internet Ltda- ME
• AS270962 NETICO TELECOMUNICACAO LTDA
• AS272253 FLASH PROVEDOR DE INTERNET LTDA

Internet exchanges

• IX.br (PTT.br) São Paulo — São Paulo, Brazil
• IX.br (PTT.br) Ribeirão Preto — Ribeirão Preto, Brazil