AS28605 Defferrari Informatica Ltda.

The website screenshot for https://dsi.net.br

Defferrari Informatica Ltda.

AS Number 28605
Website https://dsi.net.br

Registered on: 26 Jul 2005 (20 years old)
Registered to: 101877 (lacnic)

Network status: Active, Allocated under NIC.BR

Network type: Eyeball

Prefixes Originated: 8 IPv4, 1 IPv6

Upstreams

AS3356 - Lumen (Level 3)
AS13786 - Seaborn (Seabras USA, LLC)
AS28283 - Adyl Telecom
AS14840 - BR.DIGITAL
AS264409 - Huge Networks
AS26615 - TIM S/A

Rankings

#190 for Unique Domains in Brazil

Prefixes Originated

8 IPv4, 1 IPv6

Show Low Visibility Prefixes

Addresses Originated

20 /24's of IPv4

65536 /48's of IPv6

	Prefix	Description
	179.127.112.0/22	Defferrari Informatica Ltda.
	201.20.144.0/22	Defferrari Informatica Ltda.
	201.20.144.0/21	Defferrari Informatica Ltda.
	201.20.144.0/20	Defferrari Informatica Ltda.
	201.20.148.0/22	Defferrari Informatica Ltda.
	201.20.152.0/21	Defferrari Informatica Ltda.
	201.20.152.0/22	Defferrari Informatica Ltda.
	201.20.156.0/22	Defferrari Informatica Ltda.
	2804:3c0::/32	Defferrari Informatica Ltda.

Peers: 32

Upstreams: 6

Downstreams: 14 (Cone: 18)

Network Policy

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How are upstreams and downstreams calculated?

Upstreams

ASN	Description	IPv4	IPv6
AS3356	Lumen (Level 3)	✔	✔
AS13786	Seaborn (Seabras USA, LLC)	✔	✔
AS28283	Adyl Telecom	✔	✔
AS14840	BR.DIGITAL	✔	✔
AS264409	Huge Networks	✔	✘
AS26615	TIM S/A	✔	✘

Peers

ASN	Description	IPv4	IPv6
AS28283	Adyl Telecom	✔	✔
AS28584	Defferrari Solucoes em Internet Ltda	✔	✔
AS3356	Lumen (Level 3)	✔	✔
AS13786	Seaborn (Seabras USA, LLC)	✔	✔
AS22128	Defferrari Solucoes em Internet Ltda	✔	✘
AS52851	CTA INTERNET LTDA	✔	✔
AS61930	Telecomunicações Riograndense Ltda	✔	✔
AS264274	DSP RS TELECOMUNICAÇÕES LTDA.	✔	✔
AS269068	Plus Networks	✔	✘
AS264529	IW Group Solucoes em TI	✔	✘
AS267668	Gigaweb Tecnologia	✔	✔
AS268516	Midia Net Telecom	✔	✔
AS264409	Huge Networks	✔	✘
AS14840	BR.DIGITAL	✔	✔
AS273420	Misternet internet Ltda	✘	✔
AS264920	Shel Net Informatica Ltda	✔	✔
AS61615	FALE S.A.	✔	✔
AS269484	START TELECOM	✔	✔
AS262458	Tec System Sistemas Eletronicos LTDA	✔	✘
AS268843	CDNTV TECNOLOGIA LTDA	✔	✔
AS26615	TIM S/A	✔	✘
AS267613	ELETRONET S.A.	✔	✔
AS7195	EdgeUno	✘	✔
AS28343	Unifique Telecomunicações SA	✔	✔
AS1916	RNP - Rede Nacional de Ensino e Pesquisa	✔	✔
AS1031	PEER 1031 LLC	✔	✘
AS271247	RS Sul Telecomunicações Ltda	✔	✔
AS270470	LN TELECOM	✔	✔
AS53062	ALT \| GRUPO BRASIL TECPAR	✔	✘
AS61568	ALOO TELECOM - FSF TECNOLOGIA SA	✔	✘
AS262589	SAMM	✔	✘
AS6057	Administracion Nacional de Telecomunicaciones	✘	✔

Downstreams

ASN	Description	IPv4	IPv6
AS28584	Defferrari Solucoes em Internet Ltda	✔	✔
AS52851	CTA INTERNET LTDA	✔	✔
AS22128	Defferrari Solucoes em Internet Ltda	✔	✘
AS264274	DSP RS TELECOMUNICAÇÕES LTDA.	✔	✔
AS61930	Telecomunicações Riograndense Ltda	✔	✔
AS269068	Plus Networks	✔	✘
AS273420	Misternet internet Ltda	✘	✔
AS267668	Gigaweb Tecnologia	✔	✔
AS264529	IW Group Solucoes em TI	✔	✘
AS264920	Shel Net Informatica Ltda	✔	✘
AS61615	FALE S.A.	✔	✔
AS268516	Midia Net Telecom	✔	✔
AS268843	CDNTV TECNOLOGIA LTDA	✔	✔
AS269484	START TELECOM	✔	✔

% IP Client: 2a0c:2f07:9459:443:0:0:0:155
 % Copyright (c) Nic.br - Use of this data is governed by the Use and
% Privacy Policy at https://registro.br/upp . Distribution,
% commercialization, reproduction, and use for advertising or similar
% purposes are expressly prohibited.
% 2025-11-20T22:59:21-03:00 - 2a0c:2f07:9459:443::155

aut-num:     AS28605
owner:       Defferrari Informatica Ltda.
ownerid:     94.966.306/0001-40
responsible: Marco Defferrari
country:     BR
owner-c:     MAD6
routing-c:   MAD6
abuse-c:     MAD6
created:     20050726
changed:     20130306
inetnum:     201.20.144.0/20
inetnum:     2804:3c0::/32
inetnum:     179.127.112.0/22

nic-hdl-br:  MAD6
person:      Marco Defferrari
# Email removed, Log into bgp.tools to see whois emails
country:     BR
created:     19971230
changed:     20220207

% Security and mail abuse issues should also be addressed to cert.br,
% respectivelly to cert@cert.br and mail-abuse@cert.br
%
% whois.registro.br only accepts exact match queries for domains,
% registrants, contacts, tickets, providers, IPs, and ASNs.

Last Update: 2025-11-21T01:59:21Z UTC / (Click here to force a refresh)

Member of the following AS-SETs

-	Member
RADB	as264409:as-cone
RADB	as-cn2
RADB	as-hugenet-customers
RADB	as-durand1-customer
RADB	as28343:as-customers
RADB	as-ctbc-customers30
RADB	as14840:as-customers-04
RADB	as-e1-automation-customer
RADB	as-hurricanev6
RADB	as-btn-customers
RADB	as-ufinet-latam-brasil
RADB	as3491:as-customers-na
RADB	as53013:as-cone
RADB	as-267613
RADB	as-embratelnet
RADB	as-ctbc-tools
RADB	as-megatelecom-customers
ALTDB	as-53167-cust
ARIN	as1239:as-customers
RADB	as26615:as-customers
LEVEL3	as-lumen-customers-asns
RADB	as-ctbc-customers108
RADB	as-adylnet-customers
RADB	as-angolacables-br
RADB	as-hurricane
ALTDB	as-hwng-downstreams

Name	IPv4	IPv6	Link Speed
IX.br (PTT.br) Porto Alegre	177.52.38.34	2001:12f8:0:6::2:8605	20 gbps
IX.br (PTT.br) Porto Alegre	177.52.39.1	2001:12f8:0:6:0:b:2:8605	20 gbps
IX.br (PTT.br) Porto Alegre	177.52.38.136		n/a

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Upstreams

Rankings

Network Policy

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Upstreams

Peers

Downstreams

Member of the following AS-SETs

Internet Exchange Points