AS28605 — Defferrari Informatica Ltda.

Network type: residential

AS28605 announces 2 IPv4 prefixes covering 5,120 addresses and 1 IPv6 prefixes.

About this network

AS28605 is operated by Defferrari Informática Ltda., a regional Brazilian internet service provider.

What it's used for

• The address space carries residential and business access traffic, evidenced by reverse DNS records pointing to rev.defferrari.com.br for both IPv4 blocks.
• The AS announces 5120 IPv4 addresses across 2 prefixes and 5 IPv6 prefixes, while maintaining 25 observed neighbours. This ratio of moderate address space against a significant number of peering partners suggests a regional access network with multiple upstream or peering relationships rather than a pure transit provider.

Notable

• Registrants for both announced IPv4 prefixes (201.20.144.0/20 and 179.127.112.0/22) are listed as Defferrari Informatica Ltda., matching the AS holder.
• The operator is also known as DSI Internet, a regional cable/DSL provider in Brazil.
• The inventory consists of two distinct IPv4 blocks and a fragmented set of IPv6 prefixes, including a large /40 and several /48 allocations.

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

Announced prefixes

• 179.127.112.0/22
• 201.20.144.0/20
• 2804:3c0::/32

Upstream networks

• AS3356 Level 3 Parent, LLC
• AS7195 EDGEUNO S.A.S
• AS13786 Seabras 1 USA, LLC
• AS52838 WN TELECOM LTDA - ME
• AS28283 Adylnet Telecom

Downstream networks

• AS28584 Defferrari Solucoes em Internet Ltda
• AS22128 Defferrari Solucoes em Internet Ltda
• AS52851 CTA INTERNET LTDA
• AS61930 Telecomunicacoes Riograndense Ltda
• AS264274 DSP RS TELECOMUNICACOES LTDA.
• AS264920 Shel Net Informatica Ltda
• AS61615 FALE S.A.
• AS264529 IW Group Solucoes em TI
• AS267668 Gigaweb Tecnologia
• AS273420 Misternet internet Ltda
• AS268843 CDNTV TECNOLOGIA LTDA
• AS269484 START TELECOM

Adjacent networks

• AS7195 EDGEUNO S.A.S
• AS3356 Level 3 Parent, LLC
• AS28584 Defferrari Solucoes em Internet Ltda
• AS13786 Seabras 1 USA, LLC
• AS22128 Defferrari Solucoes em Internet Ltda
• AS52851 CTA INTERNET LTDA
• AS61930 Telecomunicacoes Riograndense Ltda
• AS264274 DSP RS TELECOMUNICACOES LTDA.
• AS264920 Shel Net Informatica Ltda
• AS52838 WN TELECOM LTDA - ME
• AS61615 FALE S.A.
• AS28283 Adylnet Telecom
• AS264529 IW Group Solucoes em TI
• AS267668 Gigaweb Tecnologia
• AS264409 Huge Solucoes Corporativas Ltda
• AS273420 Misternet internet Ltda
• AS26615 TIM S/A
• AS268843 CDNTV TECNOLOGIA LTDA
• AS269484 START TELECOM

Internet exchanges

• IX.br (PTT.br) Porto Alegre — Porto Alegre, Brazil